The once highest point in China blends symbolic design with a kick of adrenaline.

Beijing's version of Disneyland, completely abandoned, mostly destroyed.

This ancient Chinese observatory still contains early astronomy technology.

With its mine closed, this old village is starting to resemble a ghost town.

A study of Fascist era Art Deco design in Italy.

When a massive landslide hit one of the world's tallest dams it created a tragic environmental disaster.

A space dedicated to contemporary art and culture, co-chaired by fashion icon Miuccia Prada.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

The only substantial part of Nazi Germany's formidable defensive line through Northern Italy that survives today, largely intact.

A line of abandoned, alien-like fortresses dot the mountains of North Italy.

The world's oldest surviving anatomical theater, where "the dead are pleased to help the living."

A domed disco abandoned since the '70s now attracts artists and explorers under its unique roof.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

This military mausoleum captures the solemn grandeur that most memorials only aspire to.

One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

Long-abandoned art nouveau baths beneath Milan's Piazza Oberdan.

This half-finished "city of toys" was almost Italy's own Las Vegas.

This Italian foot path winds through the mountains via 52 individual tunnels.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

A complex, nine-layer maze on the grounds of a Venetian doge's playground.

Virgil's many-mouthed gateway to the underworld.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

This 16th-century monastery has been turned into a surrealist architecture compound.