One of the tallest mountains in India was closed for years after a botched CIA mission.

This space rock fragment is one of the only meteors to have ever struck a human.

One of the most powerful computers in the world can be visited by anyone who wants to experience more computing than they can handle.

This luxury shopping lane has been protected by its own tiny police force for over a century.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

The secret cells in the basement of the KGB's Estonian "Grey House" have been preserved as a grim Cold War museum.

The watery grave of Captain Bligh's famous ship.

The world is full of swimming holes, but few compare to Samoa’s idyllic To Sua ocean trench.

Museum mostly in name, and only a restaurant depending on the day, this place could only exist in Marfa.

This Russian religious complex is a Frankenstein's chapel that includes influence from almost all the major faiths.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

At the point of oceanic inaccessibility, you can't get farther from dry land without leaving the planet.

The wreckage of a deadly bomber plane crash can still be found near an Arizona peak.

The hotel room where Janis Joplin tragically died has now become a makeshift shrine to the singer.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

This architectural triumph is the only Frank Lloyd Wright house in Alabama.