The second largest in the world, this massive underground void has its own subway.

This dockworkers' lunch joint has been left leaning by a century of storm floods.

This recently restored crypt was once plagued by liquefying coffins and exploding caskets.

Medical history with an amazing, if frighting, collection of wax diseases on display.

Land that belongs to no nation.

Where a Japanese government official issued transit visas to Jews fleeing from Nazi-occupied Poland.

A century-old prison in the heart of Vilnius is now a lively bar, dance club, and artist residency.

This micro-nation may be some sort of prank, but its constitution sure seems official.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

An abandoned desert hamlet swallowed up by sand.

Starting with nothing more than discarded conch shells, one man has built an island/bar that would make Jimmy Buffet jealous.

A natural tidal swimming pool is ringed by bizarrely artistic lava rock formations.

This century old flensing port is a remnant of a culture for whom whaling is still legal.

The decaying remains of a once-luxurious Soviet spa town.

At this cemetery, artists are invited to design their own gravestones.

After visiting hours, this picturesque waterfall is essentially turned "off" to be used for hydroelectric power.

Right up until the 20th century this network of man-made caves was the biggest village in Eastern Armenia.

You'll find just about anything in this funky Tbilisi flea market.

Legend says these stone structures are where the doomed citizens of a vanished village sent themselves to die.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This former Cyprus flight hub is now a crumbling, abandoned ghost complex.

Once standing on solid ground, this slender beacon is a victim of the very shoreline it was charged with announcing.