Spectacular 300-foot cliffs in a lush mountain canyon.

After a battle with Congress, Webb C. Hayes installed the gates of the White House on the fence of his father's Presidential Library and Museum.

Much of the spectacular canyon followed over a century ago by the Los Angeles & Salt Lake railroad is now accessible to cars.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

Rocky outcrops containing overhangs, caves, fissures, clefts, and alcoves that invite exploration and scrambling.

This 35-foot-tall hamburger-toting chef is said to be the largest bobblehead in the world.

Since 1956, this quintessentially New England seafood shack has been boiling its lobsters in seawater over wood fires.

Explore the flooded remains of a limestone mine in Kentucky.

This 'terrible lizard' was one of the world's first animatronic dinosaurs.

Collectors keep the story of Ohio Valley glassmaking alive.

Pleistocene megafauna fossils are the subject of Nevada's newest state park at the northern edge of the Las Vegas metropolitan area.

A history of the U.S. military, with a focus on Pennsylvania's contributions.

Preserving the story of an early 20th-century orphanage.

The second oldest jail in Florida gives insight into the realities of the criminal justice system at the turn of the 20th century.

This Idaho state park boasts the tallest single-structured sand dune in North America.

Dozens of elaborate works of automotive art have been preserved at this Arizona museum.

Ruins from the Parthenon and petrified wood line the interior of one of the world's most famous monuments.

Pay your respects at the final resting place of the man behind one of the best-known names in food.

Forest Gump ran past this iconic Maine lighthouse in his cinematic cross-country journey.

This is the cabin from which John Brown and his men launched their fateful war to end slavery on October 16, 1859.

Once the center of Gold Rush mania, now the starting point for the Yukon Quest sled dog race.

This beloved, whimsical weiner topped an eclectic variety of Los Angeles buildings, including a Thai restaurant and an advertising agency.

An unconventional monument to one of America's largest landowners.

Fall through a crack in the seams of reality at this immersive art installation.