See the computer’s history revealed over the course of 20,000 years.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

Italian horror legend Dario Argento’s own shop hides a sinister museum-dungeon in the basement.

This bizarre residential building is the masterpiece of Von Jour Caux, the “Gaudí of Japan.”

Nature took her revenge on the "Wickedest City in the World."

An architect transformed this abandoned cement factory into his castle-like workshop.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

A centuries-old quest to create artificial life is alive and well in the French town of Limoux.

Grab a latte at the birthplace of modern American skateboarding.

During World War II, Austria's oldest salt mine was used to store thousands of pieces of stolen artwork.

This museum dedicated to the history of the medical bone trade and human osteology.

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

This massive underground salt mine now holds a sci-fi theme park in its depths.

The oldest stone house in Paris was built by its most famous alchemist.

Hike, ski, or snowshoe to a backcountry yurt that serves up gourmet, four-course dinners.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

The city's oldest Chinese restaurant offers local history and seriously good food.

This otherwise innocuous bodega was once the headquarters of the most feared assassin's guild in American history.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.