The Grand Canyon is a steep-sided canyon carved by the Colorado River in Arizona, United States. The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and attains a depth of over a mile (1,857 meters). For thousands of years, the area has been continuously inhabited by Native Americans, who built settlements within the canyon and its many caves.

Most visitors (90%) see Grand Canyon from the "South Rim" from overlooks accessed by free park shuttle buses or by their personal vehicles. The South Rim is open all year. A much smaller number of people (10%) see the canyon from the North Rim of the park, which lies just 10 miles (16 km) across the canyon from the South Rim, but is a 220 mile/ 354 km drive by car. The North Rim has a short season. 

Bryce Canyon National Park is a United States national park located in southwestern Utah. The major feature of the park is Bryce Canyon, which despite its name, is not a canyon, but a collection of giant natural amphitheaters along the eastern side of the Paunsaugunt Plateau. Bryce is distinctive due to geological structures called hoodoos, formed by frost weathering and stream erosion of the river and lake bed sedimentary rocks. The red, orange, and white colors of the rocks provide spectacular views for park visitors. Bryce sits at a much higher elevation than nearby Zion National Park. The rim at Bryce varies from 8,000 to 9,000 feet (2,400 to 2,700 m).

Craters of the Moon National Monument and Preserve is a U.S. National Monument and national preserve in the Snake River Plain in central Idaho. The average elevation is about 5,900 feet (1,800 m) above sea level. The protected area's features are volcanic and represent one of the best-preserved flood basalt areas in the continental United States. Craters of the Moon is a vast ocean of lava flows with scattered islands of cinder cones and sagebrush.

The Monument was established on May 2, 1924. 

Yellowstone National Park is located in the U.S. states of Wyoming, Montana, and Idaho. It was established by the U.S. Congress and signed into law by President Ulysses S. Grant on March 1, 1872. It was the first national park in the U.S. and is also widely held to be the first national park in the world. The park is known for its wildlife and its many geothermal features, especially Old Faithful geyser, one of its most popular features. It has many types of ecosystems, but the subalpine forest is the most abundant. It is part of the South Central Rockies forests ecoregion. Yellowstone National Park spans an area of 3,468.4 square miles (8,983 km2), comprising lakes, canyons, rivers and mountain ranges. Yellowstone Lake is one of the largest high-elevation lakes in North America and is centered over the Yellowstone Caldera, the largest supervolcano on the continent. The caldera is considered an active volcano. It has erupted with tremendous force several times in the last two million years. The park is the centerpiece of the Greater Yellowstone Ecosystem, the largest remaining nearly-intact ecosystem in the Earth's northern temperate zone. In 1978, Yellowstone was named a UNESCO World Heritage Site.

Pikes Peak is the highest summit of the southern Front Range of the Rocky Mountains, in North America. The ultra-prominent 14,115-foot (4,302.31 m) fourteener is located in Pike National Forest, 12 miles (19 km) west of downtown Colorado Springs, Colorado. The mountain is named in honor of American explorer Zebulon Pike, who was unable to reach the summit. The summit is higher than any point in the United States east of its longitude.

Carlsbad Caverns National Park is located in the Guadalupe Mountains of southeastern New Mexico. The primary attraction of the park is the show cave, Carlsbad Cavern. Carlsbad Cavern includes a large cave chamber (The Big Room), a natural limestone chamber almost 4,000 feet (1,220 m) long, 625 feet (191 m) wide, and 255 feet (78 m) high at the highest point. It is the fifth largest chamber in North America and the twenty-eighth largest in the world. Park is open every day of the year except Thanksgiving, Christmas, and New Year's Day. Visitors to the cave can hike in on their own via the natural entrance or take an elevator from the visitor center.

The Alamo Mission in San Antonio was founded in the 18th century as a Roman Catholic mission and fortress compound, and today is part of the San Antonio Missions UNESCO World Heritage Site in San Antonio, Texas, United States. It was the site of the Battle of the Alamo in 1836, and is now a museum in the Alamo Plaza Historic District.

The compound was one of the early Spanish missions in Texas, built for the education of area American Indians after their conversion to Christianity. Ten years later, it became a fortress housing the Second Flying Company of San Carlos de Parras military unit, who likely gave the mission the name Alamo. For the next five years, the Alamo was periodically used to garrison soldiers, both Texian and Mexican. The U.S. Army abandoned the mission in 1876. The Alamo chapel was sold to the state of Texas, which conducted occasional tours but made no effort to restore it.

Chickasaw National Recreation Area is situated in the foothills of the Arbuckle Mountains in south-central Oklahoma near Sulphur in Murray County. It includes the former Platt National Park and Arbuckle Recreation District.

The area was established as Sulphur Springs Reservation in 1902; renamed and redesignated Platt National Park in 1906; combined with the Arbuckle Recreation Area and additional lands and renamed and redesignated in 1976. Of the park's 9,888.83 acres (4,002 ha), water covers 2,409 acres (975 ha). The park contains many fine examples of 1930's Civilian Conservation Corps architecture.

Toltec Mounds Archeological State Park also known as Knapp Mounds, Toltec Mounds Site or Toltec Mounds, is an archaeological site from the Late Woodland period in Arkansas that protects an 18-mound complex with the tallest surviving prehistoric mounds in Arkansas. The site is on the banks of Mound Lake, an oxbow lake of the Arkansas River. The site is designated as a National Historic Landmark.

If you're an Elvis Presley fan, you must tour Graceland. It is a mansion in Memphis, Tennessee, United States, that was owned by Elvis Presley. It currently serves as a museum. It was opened to the public in 1982. The site was listed in the National Register of Historic Places in 1991, and declared a National Historic Landmark in 2006. Graceland is the second most-visited house in America; first one is White House.

Vicksburg National Military Park preserves the site of the American Civil War Battle of Vicksburg, waged from March 29 to July 4, 1863. The park, located in Vicksburg, Mississippi, also commemorates the greater Vicksburg Campaign which led up to the battle. Reconstructed forts and trenches evoke memories of the 47-day siege that ended in the surrender of the city. Victory here and at Port Hudson, farther south in Louisiana, gave the Union control of the Mississippi River. The park includes 1,325 historic monuments and markers, 20 miles (32 km) of historic trenches and earthworks, a 16-mile (26 km) tour road, a 12.5-mile (20.1 km) walking trail, two antebellum homes, 144 emplaced cannons, the restored gunboat USS Cairo (sunk on December 12, 1862, on the Yazoo River), and the Grant's Canal site, where the Union Army attempted to build a canal to let their ships bypass Confederate artillery fire.

The French Quarter is the oldest section of the City of New Orleans. Founded in 1718 by Jean-Baptiste Le Moyne de Bienville, New Orleans developed around the Vieux Carré, the city's central square. 

Most extant historical buildings were constructed in the late 1700s, during a period of Spanish rule, or during the early 1800s, after U.S. annexation and statehood. The district is a National Historic Landmark, and numerous contributing buildings have received separate designations of significance. The French Quarter is a prime destination for tourists and local residents.

Battleship Memorial Park is a military history park and museum located on the western shore of Mobile Bay in Mobile, Alabama. It has a collection of notable aircraft and museum ships including the South Dakota-class battleship USS Alabama and Gato-class submarine USS Drum. USS Alabama and USS Drum are both National Historic Landmarks; the park as a whole was listed on the Alabama Register of Landmarks and Heritage prior to that time in 1977.

Cape Canaveral Air Force Station (CCAFS) is an installation of the United States Air Force Space Command's 45th Space Wing. CCAFS is headquartered at the nearby Patrick Air Force Base, and located on Cape Canaveral in Brevard County, Florida. The station is the primary launch head of America's Eastern Range with three launch pads currently active. Popularly known as "Cape Kennedy" from 1963 to 1973, and as "Cape Canaveral" from 1949 to 1963 and from 1973 to the present, the facility is south-southeast of NASA's Kennedy Space Center on adjacent Merritt Island, with the two linked by bridges and causeways. The Cape Canaveral Air Force Station Skid Strip provides a 10,000-foot (3,000 m) runway close to the launch complexes for military airlift aircraft delivering heavy and outsized payloads to the Cape.

Okefenokee Swamp Park is located near Waycross, Georgia, United States. The Park is the most extensive blackwater swamp in North America and covers over 438,000 acres. The Okefenokee Swamp Park, Inc., which began operation in October 1946, receives no federal or state funding and operates as a  non-profit organization. Located six miles southeast from Waycross, Georgia, the park serves as a convenient access point to the "Land of the Trembling Earth," and prides itself on being a leader in both Ecotourism and Education. The park allows visitors to get an casual and up-close look at some of the swamp's infamous residents such as the American Alligator, river otter, turtles, snakes, birds-of-prey, and more. 

Fort Sumter National Monument is a United States National Monument located in Charleston County, in coastal South Carolina. The Fort Sumter Visitor Education Center feautures museum exhibits about the disagreements between the North and South that led to the incidents at Fort Sumter, particularly in South Carolina and Charleston. Displays include slavery and the plantation culture, major figures, politics, and how the Confederate Army was formed. This site is also the main departure point for tour boats heading to Fort Sumter in Charleston Harbor. The museum at Fort Sumter itself focuses on the activities at the fort, including its construction and role during the American Civil War.

Lost World Caverns is located just outside Lewisburg, West Virginia. It is an underground natural series of caverns. In November 1973, the caverns were registered as a National Natural Landmark as they "feature terraced pedestal-like stalagmites, flowstone, curtains, rimstone, domepits, and waterfalls". The "walking" tour section of the cave consists of a large chamber with many formations like the Bridal Veil, Goliath, Snowy Chandelier, Ice Cream Wall, Castle and, perhaps the most storied, the War Club, where Bob Addis made it into the Guinness Book of World Records by sitting atop the 28-foot formation for nearly 16 days. In addition to the "walking" tour, one can opt for a rougher guided "wild" tour through the remote sections of the cave, visiting sights like the Angel's Roost, Birth Canal, Keyhole, Glitter Pits, the Hall of the Mountain King and other passages and formations.

Wright Brothers National Memorial, located in Kill Devil Hills, North Carolina, commemorates the first successful, sustained, powered flights in a heavier-than-air machine. Wind, sand, and a dream of flight brought Wilbur and Orville Wright to Kitty Hawk, where, after three years of scientific experimentation, they achieved the first successful airplane flights in 1903. What they achieved changed our world forever.

Mount Vernon was the plantation house of George Washington, the first President of the United States, and his wife, Martha Dandridge Custis Washington. It is one of the most iconic historic homes in America. The estate is situated on the banks of the Potomac River in Fairfax County, Virginia, near Alexandria. The Washington family had owned land in the area since the time of Washington's great-grandfather in 1674. Combining an authentically interpreted 18th-century home, lush gardens and grounds, intriguing museum galleries, immersive programs, and first-rate dining and shopping, Mount Vernon is an incomparable national treasure.

The White House is the official residence and workplace of the President of the United States. It is located at 1600 Pennsylvania Avenue NW in Washington, D.C. and has been the residence of every U.S. President since John Adams in 1800. At various times in history, the White House has been known as the “President’s Palace,” the “President’s House,” and the “Executive Mansion.” President Theodore Roosevelt officially gave the White House its current name in 1901. The White House is a place where history continues to unfold.

There are 132 rooms, 35 bathrooms, and 6 levels in the Residence.

The Colonial Annapolis Historic District is a historic park in the city of Annapolis, that was designated a National Historic Landmark District in 1965 and was geographically further expanded in 1984. It is an incredibly beautiful and fascinating site to explore on the Chesapeake—including the U.S. Naval Academy! The Colonial Annapolis Historic Distric is designed in the European fashion. The design was so admired by frequent visitor George Washington that he incorporated it into the design of the nation’s capital. The Maryland State House, the oldest such capital building in continuous use in the United States. Annapolis also featured the first theater in the new world.

The New Castle Historic District is an area in the center of the city with about 500 historic buildings that date from 1700 to 1940. This Distict includes one of the highest concentrations of well-preserved historic buildings. It was declared a National Historic Landmark in 1967. Among the structures located in the Historic District are: home of New Castle Historical Society, House of George Read, Booth House, Gilpin House, Old New Castle Court House and much more. 

The Cape May Historic District is an area with over 600 buildings in the resort town of Cape May in New Jersey. It’s America’s oldest seaside resort. We can find there lots of Victorian houses and buildings. It has the highest concentration of Victorians after San Francisco. The District includes the Eclectic, Stick and Shingle styles, as well as the later Bungalow style. 

The Liberty Bell is an important and famous symbol of American independence. The two lines of text around the top of the bell include the inscription of liberty, and information about who ordered the bell (Pennsylvania Assembly) and why (to go in their State House). It was cracked when it was first rung when it comes to Philadelphia, and was made again twice, by two workmen. The bell is a museum exhibit in Philadelphia now, in the building which is a part of the Independence National Historical Park.

The Statue of Liberty is a colossal neoclassical sculpture on Liberty Island in New York. It’s unofficial symbol of freedom both New York and United States. The Statue of Liberty was a gift of friendship from people of France to the U.S. and is recognized as a universal symbol of freedom and democracy. It was dedicated in 1886 and designated as a National monument in 1924. In 1984 it was designated a UNESCO World Heritage Site. 

The Mark Twain House and Museum in Hartford, Connecticut, was the home of Samuel Langhorne Clemens (known as Mark Twain) and his family in 19th century. According to National Geographic, it’s one of the most interesting monuments of residential construction. Clemens wrote many of his best-known works while living there, including The Adventure of Tom Sawyer, The Prince and the Pauper, A Tramp Abroad and much more. The building includes a museum dedicated to showcasing Twin’s life and work.

The Breakers is the grandest of Newport's summer "cottages" and a symbol of the Vanderbilt family's social and financial preeminence in turn of the century America. This Vanderbilt mansion is located on Rhode Island. The building became a National Historic Landmark in 1994 and is a contributing property to the Bellevue Avenue Historic District. President Trump bought the Breakers mansion in Newport for about 112 million $ and want to turn it into Summer White House. 

The USS Constitution Museum is located in the Charlestown Navy Yard and is part of the Boston National Historical Park. It’s located near the ship USS Constitution at the end of Boston’s Freedom Trail. The USS Constitution Museum serves as the memory and educational voice of USS Constitution, by collecting, preserving, and interpreting the stories of “Old Ironsides” and the people associated with her. It is also home to the Samuel Eliot Morison Memorial Library and includes a comprehensive archival repository of records related to the ship's history.

Acadia National Park is the only national park in the state of Maine, Bar Harbor. The park includes mountains, an ocean shoreline, woodlands, and lakes. Acadia National Park protects the natural beauty of the highest rocky headlands along the Atlantic coastline of the United States, an abundance of habitats with high biodiversity, clean air and water, and a rich cultural heritage. It’s the oldest designated national park in the United States east of Mississippi River.

The Mount Washington Hotel is a hotel in Bretton Woods, New Hampshire. In 2015 changed its official name for Omni Mountain Washington Resort. It’s a member of Historic Hotels of America. A grand masterpiece of Spanish Renaissance architecture, the property was a two-year labor of love for 250 master craftsmen. Conceived by industrialist Joseph Stickney, and named a National Historic Landmark, was opened in 1902 and have been attracting generations of families ever since.

Shelburne Farms is a non profit education center for sustainability and quality of life on earth. That means learning that links knowledge, inquiry, and action to help students build a healthy future for their communities and the planet. The campus is a 1,400-acre working farm, forest, and National Historic Landmark. The farm serves as an educational resource by practicing rural land use that is environmentally, economically and culturally sustainable. Visitors may enjoy the walking trails, children’s farmyard, inn, restaurant, property tours and special events.

The Fox Theatre is a performing arts center located in Downtown Detroit. It was originally billed as “the most magnificent Temple of Amusement in the world”. Opened in 1928 as the flagship movie palace for the Fox Theatre Chain, it was designated a National Historic Landmark in 1988 and listed on the National Register of Historic Places in 1985. The Fox has a capacity of 5,048 seats and plays host to many top shows and events. It is the largest surviving movie palace of the 1920s and the largest og the original Fox Theatres.

Spring Grove Cemetery and Arboretum is a garden cemetery and arboretum located in Cincinnati, Ohio. It is the fourth largest cemetery in the United States. This magnificent graveyard is also a popular public park. Founded in 1845, it is comprised of 733 acres, but currently only 400 are landscaped and in use. Spring Grove Cemetery and Arboretum is recognized as a US National Historic Landmark.

Mammoth Cave National Park in Kentucky is the world’s longest known cave system, with more than 400 miles explored. It’s centered on the Green River, with a tributary, the Nolin River, feeding into the Green just inside the park. Mammoth Cave National Park was officially dedicated as a national park by 1941. It became a World Heritage Site in 1981 and an International Biosphere Reserve in 1990.

An architectural marvel, West Baden Springs Hotel is the crown jewel of French Lick Resort Casino. It’s located in Orange County, Indiana. The turn-of-the century National Historic Landmark offers 243 exquisitely appointed rooms, a world-class spa, championship golf, and a wide array of dining and entertainment options. The West Baden Spring Hotel may be the most beautiful building in the Midwest.

Lincoln Home National Historic Site in Springfield is a historic district where Abraham Lincoln lived, before become the 16^th President of the United States. The Home has proved irresistible to visitors since it first opened to the public in 1887. Constructed in 1839 and restored to its 1860 appearance, the 12-room, Greek Revival house draws hundreds of thousands of visitors each year.

The Gateway Arch is a world’s tallest arch. This 630-foot monument in St. Louis sits along the west bank of the Mississippi River. It took it’s name from the city’s role as the “Gateway to the West” during the westward expansion of the United States in the 19^th century. It is centerpiece of the Gateway Arch National Park, which is memorial to Thomas Jefferson’s role in opening the West, to the pioneers who helped shape its history and to Dred Scott who sued for his freedom in the Old Courthouse.

C.W. Parker Carousel Museum (or Leavenworth Carousel Museum) in Kansas is a building houses carousels that are historically registered, as well as a C.W. Parker cylinder piano, an Artizan band organ and a Wurlitzer band organ. Visitors can ride a carousel that’s more than 100 years old. The Museum is a non-profit organization.

Terrace Hill is the official residence of the Governor of Iowa. The Iowa Governor’s Residence is among the best examples of American Victorian Second Empire architecture. The house was designated a national Historic Landmark in 2003.

Taliesin is a home, studio, school and 800-acre agricultural estate of Frank Lloyd Wright. He built Taliesin on his favourite boyhood hill in the Wisconsin River valley. It’s the name of Wright’s home as wall as the estate that includes buildings from nearly every decade of Wright’s career from 1890 to 1950. The Taliesin residence is the heart of these buildings that Frank designed and modified.

Historic Fort Snelling commands the confluence of the Mississippi and Minnesota Rivers. The Fort was a United States military fortification. It is designated as a National Historic Landmark and has been named a ‘national treasure’. Visitors to the fort interact with re-enactors that describe the history and the lives of the people who lived, visited, and traded here.

Ashfall Fossil Beds are rare fossil site type due to extraordinary local conditions, capture a moment in time ecological ‘snapshot’ in a range of well-preserved fossilized organisms. About 12 million years ago, a volcano in Idaho spread a blanket of ash over a very large area and their fossils are studied as an example of natural selection.

Mount Rushmore National Memorial is a sculpture carved into the granite face of Mount Rushmore, a batholith in the Black Hill in South Dakota. These majestic figures of George Washington, Thomas Jefferson, Theodore Roosevelt and Abraham Lincoln tell the story of the birth, growth, development and preservation of United States. Mount Rushmore has become an iconic symbol of the United States.

Fort Union Trading Post was the most important fur trading post on the upper Missouri from 1828 to 1867, where many tribes conducted trading. The Fort Union represents a unique era in American history, a brief period when two different civilizations found common ground and mutual benefit through commercial exchange and cultural acceptance. It’s one of the earliest declared National Historic Landmarks.

Glacier National Park (called Crown of the Continental) in Montana is the headwaters for streams that flow to the Pacific Ocean, the Gulf of Mexico, and to Hudson’s Bay. Glacier National Park was established in 1910, covers about one million acres of land, and contains 25 “active” glaciers that move due to thawing and melting. Glacier has numerous hiking trails and abundant fauna.

Hanford Site is a decommissioned nuclear production complex operated by the United States federal government on the Columbia River, Washington. Established in 1943 was the home to the first full-scale plutonium production reactor in the world. Hanford is currently the most contaminated nuclear site in the United States and is the focus of the nation's largest environmental cleanup. It was designated as part of Manhattan Project National Historical Park in 2015.

Historic Columbia River Highway is the first planned scenic highway in the United States, Oregon, built through the Columbia River Gorge. It was designated as a National Historic Landmark. It may be historic, but it never gets old. See breathtaking landscapes at any time of the year!

The San Francisco Municipal Railway is the public transit system for the city and country of San Francisco. You can visit the whole city sitting in the train! Although the train journey does not seem so exciting, the views, the places that passes by are definitely worth of seeing.

See the map of passenger trains in America on: https://traveler.sharemap.org/Passenger_trains_in_America

The San Andreas Fault is a continental transform fault that extends roughly 1,200 kilometers through California. It’s the most known sliding boundary in the world, between the Pacific Plate and the North American Plate. Its notoriety comes partly from the disastrous 1906 San Francisco earthquake, but rather more importantly because it passes through California, a highly-populated state.

Hoover Dam is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the United States of Nevada and Arizona. Its construction was the result of a massive effort involving thousands of workers, and cost over one hundred lives.

The Grand Canyon is a steep-sided canyon carved by the Colorado River in Arizona, United States. The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and attains a depth of over a mile (1,857 meters). For thousands of years, the area has been continuously inhabited by Native Americans, who built settlements within the canyon and its many caves.

Most visitors (90%) see Grand Canyon from the "South Rim" from overlooks accessed by free park shuttle buses or by their personal vehicles. The South Rim is open all year. A much smaller number of people (10%) see the canyon from the North Rim of the park, which lies just 10 miles (16 km) across the canyon from the South Rim, but is a 220 mile/ 354 km drive by car. The North Rim has a short season.