An ancient city exhumed from the depths of the ocean.

One of the last refuges of the endangered eastern lowland gorilla.

The most biologically diverse protected area in Africa is also the most dangerous.

The world's only facility where orphaned mountain gorillas are cared for.

Home to pygmy hunter-gatherers, hundreds of animal and bird species, and the strange okapi, or forest giraffe.

Camels and crocodiles share the black waters of this stunning Saharan oasis.

Where thousands of slaves passed through the "Door of No Return."

Buried deep in the forest near Limbe, this little known slave port became the point of no return for 10 percent of enslaved Africans.

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

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

A giant chameleon, with a fascinating purpose.

A monument to the more than one million enslaved Africans deported from the port of Ouidah.

Africa's Venice on stilts.

Abandoned ships along a deserted beach feel like the set of a post-apocalyptic thriller.

This horseshoe-shaped waterfall is the second-largest on the African continent.

This striking otherworldly landscape outside Angola's capital city is the product of millions of years of erosion.

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

Nestled in the jungles of Vanuatu are the remains of what was once a cannibal oven.

The fully functional, submerged Vanuatu Post Office is definitely one of a kind.

Ancient weaving techniques are used to create these colorful souvenirs.

The ship that got left behind.

The world is full of swimming holes, but few compare to Samoa’s idyllic To Sua ocean trench.

This mesmerizing and surreal landscape features intricate patterns of white and red sandstone.

When beetles destroyed these trees, they found new life as fantasy sculptures.