The largest known meteorite on Earth was too big to move.

Unexplained bald patches in the landscape grow and recede over time, as though they are somehow alive.

The petrified remains of 150-million-year-old trees can be seen in and among the houses of the local villagers.

This cave overlooking the Indian Ocean has been turned into a shelter and makeshift museum.

Largest cave system in Africa.

There is only one place in the world where the corners of four nations come together.

Wondrous stalactites house thousands of bats in these African caves.

Fascinating collection of Khoisan rock engravings, still situated in their original setting.

This beautiful waterfall is not easy to reach, but offers a stunning view of the pristine green valley.

This odd little home was built right into an African rock face.

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

Spanning over 10,000 square miles, this ancient salt pan is one of the largest on the planet.

The historic cave is both a symbol of superstition and black magic and inspired one of the early Christian converts in Botswana.

Tiny pyrophyllite spheres from 3 billion years ago.

Local legend has it that the first humans were created in the pools here, leaving their footprints behind in the rock.

This granite mountain is the largest rock in Africa and the second-largest monolith in the world.

A South African bar inside a hollowed out 6,000-year-old Baobab.

The subterranean sanctuary home to local shamans is a sacred site for people of all religions.

The world's largest impact crater is mainly eroded but still remembers the planet's violent history.

Home to some of the oldest hominid fossils ever found.

Caves that can't seem to quit producing the remains of prehistoric humans.

A supply store for traditional healers, this shop sells the hair of a dog--and its skin, skeleton, and reproductive organs, too.

Over a million items cram the shelves at Africa's largest shop of used and rare books.

An ancient impact crater on the outskirts of Pretoria.