Classical ruins that remember ancient Rome's presence in Africa.

One of the best-preserved impact craters on the planet is located in the middle of the Sahara Desert.

The abstract sandstone rock formations at this Algerian national park are rich with prehistoric art.

An extraordinary mix of Phoenician, Roman, early Christian, and Byzantine ruins beautifully set overlooking the Mediterranean.

The original resting place of Queen Cleopatra and Mark Antony's only daughter.

Nimrod Polar Expedition base, and home to hundred-year-old frozen whisky.

This abandoned Antarctic research station is a Soviet ghost frozen in time.

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

The best place to send your postcards home from Antarctica.

One of the world's southernmost bars.

Natural time capsule containing an alien ecosystem.

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

The museum houses "the most studied meteorite in history," among other geological oddities.

A mysterious pillar in an ancient burial chamber is said to predict how long you have to live.

These sacred Mesoamerican ruins feature peculiar petroglyphs hidden in the stones.

The striking and little-touristed ruins of an ancient city destroyed and rebuilt by the Aztecs.

One of Mexico's least-visited archaeological sites is tucked away inside a theme park.

The ruins of the "place of the cloud snake" sit in the middle of an urban environment.

A small pack of an ancient, hairless breed of dog once believed to guide souls through the underworld lives on its grounds.

One of the few places where you can visit a cenote and Maya ruins at the same time.

This colossal ancient sculpture of the monstrous Aztec rain god has a literally stormy history.

The singular ruins of a mysterious lost city.

The jewel of western Mexico's archaeological legacy is this tiered circular pyramid now covered in grass.

The unique collection often goes unnoticed by visitors focused only on the archaeological objects.