Tucked in the back of this amazing antique store is an important piece of medical history.

Towering basalt columns, a creation of fire and ice.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

This former lieutenant governor's home is brimming with curiosities.

Ten 25-foot-tall, beehive-shaped kilns, abandoned in Death Valley.

Bringing back the art of handmade custom coffins.

Twelve plaster figures inspired by da Vinci's famed painting haunt the desert landscape above a real-life ghost town.

A land of debatable treasure.

The eerie ruins of an isolated abandoned town nicknamed "the Widowmaker" for its deadly gold mine.

The longest living non-clonal organisms on Earth.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

A picture-perfect town, perfect for blowing up.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

An exotic wildlife habitat right off The Strip.

This institution collects the history of burlesque dancing with a titillating collection of ephemera and pasties.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

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

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

These medieval tunnels provided water to the city above through centuries of civil war and plague.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

This Roman quarry once held secret masses and smuggler's contraband and is now home to rare species of bats.

A spiral staircase connects the limestone cave with Pembroke Castle, birthplace of King Henry VII.

To literally keep their waste out of their own backyards, the citizens of this English city built an impressive sewer system that is still in use today.

This concept building is the UK's first attempt at making a permanent structure of nothing but trash.