This abandoned Antarctic research station is a Soviet ghost frozen in time.

These abandoned huts still hold the remains of an early 20th century Australian researcher's work.

This abandoned Antarctic base sits nearly unchanged since it was forsaken in the 1950s, just waiting for you to visit.

An ancient quarry rediscovered by a dog and claimed by biblical kings, a German cult, and the Freemasons.

This abandoned secret city is a crumbling wonderland of Soviet ruins.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

The remnants of a strange stilted building on rails can still be seen at low tide.

A top secret Cold War bunker hidden beneath a Latvian spa facility is now open for tours.

This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

The bodies of some early polar pioneers are still buried beneath the harsh snows of the Antarctic.

These passages carved from the Antarctic ice hold strange shrines to the harsh southernmost climes.

An ancient Ethiopian cave church is endangered by the simple building of a road.

The Uyghur settlement in the middle of a lake continues to raise questions.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

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

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

For more than 40 years this Barnum-inspired half-fox, half-woman has been telling fortunes from her cage in a Pakistani zoo.

The remains of this ancient fortress atop a manmade hill look as though they were built into a volcano.

This subterranean necropolis holds three floors of antler-dug grave caves.

Saddle up to Israel's only cowboy-themed bar for a hearty (and kosher) steak.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.