The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

This unique temple complex remains off the typical tourist trail.

The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.

Legend says if you stick your thumb in the hole and it gets wet your wish will be granted.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

The ancient abodes are a testament to human ingenuity amid harsh climates.

Mausoleum and Holy Seat of Antiochus I of Commagene.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

Hidden just under the waters around this Turkish island are the ruins of a once great city.

These delicate ruins need more tourists to keep them from fading away.

The world's largest clay lick, where parrots gather to snack.

One of the world's tallest waterfalls wasn't revealed to the world at large until 2006.

The world's fifth tallest waterfall is a spectacular silver chute of water that cuts through the cloud forest in northern Peru.

These giant mummies are set ominously into a Peruvian cliffside and topped with real human skulls.

With nearly double the depth of the Grand Canyon, this Peruvian canyon is one of the deepest in the world.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

Nazca pilgrimage site covering 370 acres is a popular stop for archeologists and looters.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

This scalding hot river was thought to be a myth until one geoscientist made it his quest to study the mystical waters.

The world’s largest underwater sculpture is found just off the coast of Nassau.

Inhospitable caverns just beneath this island paradise offer insights into alien worlds.

One of the deepest blue holes in the world.

In paradise, feral pigs have claimed an island all to themselves.