Source for a sizable portion of Egypt's freshwater supply is more than an optical illusion.

An endless sea of white conical domes.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

Ozymandias’ time-keeping temple.

An ancient city exhumed from the depths of the ocean.

An ancient burial ground believed to have been used for ritual sacrifice.

The largest and best-preserved Roman amphitheater in Africa was designed to seat 35,000 people.

Considered the most remote point in the entire world.

Naked scientists race around the pole in the frigid cold to try to join Antarctica's exclusive 300 Club.

Fire meets ice at the southernmost volcano on Earth.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

Natural time capsule containing an alien ecosystem.

In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

Cold storage for agricultural biodiversity.

This famous archeological mystery may be an ancient example of movable type.

The ruins of an abandoned medieval city where the last Byzantine emperor was crowned.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

According to myth, Zeus himself was hidden in this cave to escape being eaten by his dad.

Ancient Greek oracle of the dead.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

Giant marble phalluses on the sacred island of antiquity.

Cretean quarry suggests real-life site for ancient Greek myth of the man-eating Minotaur in his labyrinth.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.