Once the future of underwater combat, this old sub is now open for visitors to muck around in.

This museum sits on the site of a decommissioned military communications base.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The world’s first museum dedicated to exploring human rights unleashed a wave of controversy.

Many generations of travelers have passed through the steep, smooth walls of this canyon.

A museum dedicated to the mysterious cryptid.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

A lake with hundreds of ancient skeletons surrounding it. The surprise is what killed them.

Also known as "Hell Alley," this tiny street in Imola gained its name in a bloody episode in the 16th-century.

In a dry, neglected cemetery lies the unassuming grave of a soldier vilified in life but celebrated in death.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

The contents of this safe survived a 37-kiloton nuclear bomb.

This massive crater in the middle of nowhere was used to train astronauts for moon landings.

A collection of haunted objects and macabre oddities under one roof.

One of the most remote spots in America and the first protected wilderness area in Nevada, named after an old legend.

Singing sand that stands as the final remains of an ancient lake.

The largest man-made crater in the U.S. marks the spot where we once tested mining with nukes.

A giant open-air sculpture made of over 200 full-sized boats.

Experience a charming 1930's version of "infotainment."

Water of undetermined depth has attracted rare fish and cult leaders alike.

A new kind of theme park for adults off the Las Vegas Strip.

A picture-perfect town, perfect for blowing up.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.