Rippling sand dunes frozen in the Arizona rock.

An ancient Phoenician citadel once stood at the site where Queen Dido first landed, according to legend.

The best-preserved Roman small town in North Africa.

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.

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

A century-old stone hermitage overlooks this remote pass in the Hoggar mountains, surrounded by a landscape of eroded volcanic cores.

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

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

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

This Paleolithic cave may be the oldest cemetery in North Africa.

The ruins of an early-18th-century complex that could once house up to 12,000 horses.

A mythical garden that once grew the golden apples of wisdom is said to have existed in this ancient Moroccan city.

Mosaics, storks, and brothels—this ancient city has it all.

Along the most northwestern point in Africa is an ancient cave surrounded by legends.

A geological bull's-eye visible from outer space.

Crumbling pyramids and temple ruins stand within the shadow of this sacred butte.

These Nubian pyramids are strange and unique, even by pyramid standards.

Legend has it these caves were created by a deity called Ogba, who is said to live inside the winding subterranean caverns.

This igneous rock monolith towers above the surrounding landscape just outside the Nigerian capital.

More than 1,000 stone figures were discovered in a small Nigerian town, where they had been sitting for centuries.

The last remaining site of Yoruba worship of the fertility goddess.

Thought to be the only herd of feral horses in Africa and one of the most isolated populations in the world.

Tracks of ceratosaurus and Coelophysis rhodesiensis tracks can be found fossilized in the sandstone near Mt. Etjo.