An eerie, derelict amusement park in Berlin.

World's first "penitentiary," meant to be humane, drove men insane.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

On Japan's Tashirojima Island, cats are king.

Tiny historical streetcars wind through a small scale version of Crescent City in this whimsical train garden.

A bizarre house filled with an astounding array of collections.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

A 20th-century picture show in 3-D.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Lost subway station nestled beneath Toronto's busy commuter line.

The sign at the garden gate reads: "These Plants Can Kill."

An emerald-green grotto just a short trip from Austin.

A steam trawler with a whiskey-soaked history driven ashore in 1960 resides rusty but still standing on the shoreline.

A former Oz-themed attraction that has fallen into disrepair, but still holds some of the original magic.

This abandoned mining village was predicted to resist decay longer than any other modern human settlement.

An Australian lake whose pink hue defies scientific explanation.