One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Belly up to the bar in Cowtown, don't forget to buy some boots.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

A building so large that it has its own weather.

Berkeley Hot Springs presents to you "the only outdoor monument to presidential bathing."

This pun was simply waiting to come to life, and one defense contractor made it so.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

It should come as no surprise that the world's largest artichoke lies in the town that calls itself the "Artichoke Center of the World."

This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.

This former luxury resort in Kaua'i is now an abandoned relic.

This unusual lava tube spouts seawater during high surf.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

The famous aviator's final resting place is a study in natural beauty.

A tunnel of hardened lava along Maui’s famous Road to Hana.

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

G.V. Black, the Father of Modern Dentistry, keeps an eternal eye on Chicagoan’s teeth from his perch in Lincoln Park.

It was originally part of a "terrible lizards" collection at the 1964 New York World’s Fair.

The young Black revolutionary was killed before getting to see a non-segregated pool in his hometown.