This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

This attraction was abandoned after the Chernobyl disaster.

The final resting place and once home of the Bandit Queen of the West.

Decommissioned NYC subway cars are dumped into the ocean to create this underwater wildlife habitat.

A newspaper editor turned this abandoned island into a tortoise nature preserve that's now the world's smallest national park.

A giant floating rubber duck-bunny painted with a different design every year.

A monument hidden in the woods built in 1938 as a getaway for a Dutch museum curator.

Amsterdam's Red Light District leaves little to the imagination.

A narrow, serpentine spit of sand is constantly eroded and rebuilt by competing currents.

A glimpse of a waterfall is reached by a steel catwalk along a slot canyon located in an Ouray city park.

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

The enormous appendage offers spectacular views of Colombia's Huila Department.

This super steep hike ascends 2,000 feet in less than a mile.

This marker identifies the location where three states converge.

A unique collection of diving equipment spanning antiquity to the present day.

A tiny twin to Seattle's Fremont troll hides from the Florida sun under the Atlantic Boulevard drawbridge.

The only sea in the world that has no land boundary.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

The mysterious white squirrels of this Illinois city are treated like sacred cows.

This massive marble memorial was built bit by bit either out of devotion or spite, but at the expense of the surrounding town.

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

The purported world's shortest international bridge connects a homeowner in Canada to his backyard in New York.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.