An early 20th-century sanatorium, long abandoned and now being reclaimed by nature.

A modernist church in an ancient village.

This chest hospital with a dark, haunted past serves as a fitting set for horror films and a paradise for ghost hunters.

An abandoned Indian-inspired mansion.

The embalmed remains of the communist leader lie within a custom crystal coffin.

This smaller cousin of the Forbidden City has gone from ancestral sacrifice to tourist's whispers.

A natural arch offers panoramic views of Yangshuo's karst hills.

The most famous location in China was home to whole dynasties worth of imperial rulers.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

A little sculpture with a large wardrobe.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

France's most famous cemetery, with some of its most curious tombs.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Elevated freight railway turned wildly successful urban park.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Rippling sand dunes frozen in the Arizona rock.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.