These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

The largest known Ancient Egyptian obelisk.

A network of ancient Egyptian tombs built into the cliff face along the Nile.

The best-preserved example of a unique structure in Nubian architecture.

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

Rimmed by white crusts of salt on every edge, Lac Assal is one of the saltiest bodies of water in the world.

Kenya’s oldest town is more than 700 years old and home to 6,000 donkeys.

This moss-covered, rocky outcropping looks like a mythical beast resting in the water.

This small group of sand dunes manages to pack in a strange rainbow of colors.

At the center of an island in the middle of the Indian Ocean is a deep chasm ringed by tall waterfalls.

Réunion Island's highest point is a two-million-year-old volcano and a paraglider's paradise.

The largest prehistoric ruins south of the Sahara, once a powerful center of international trade.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

A rare cluster of alien-like plants grows along a dusty highway.

Nature’s skyscraper launches out of the terrain with attitude.

The world's largest church atop a political fault line.

Africa's Venice on stilts.

The Voodoo Superstore of the world.

Ancient Manuscripts showcase the civilization of West Africans during the Middle Ages.

One of Western Africa's oldest mosques, this Timbuktu icon has stood for nearly 700 years.

These homes carved into the mountains seem to defy the laws of nature.

The central mosque of this Mali town is entirely built from mud.