Ozymandias’ time-keeping temple.

An endless sea of white conical domes.

An ancient city exhumed from the depths of the ocean.

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

Mount Nyiragongo has erupted at least 34 times since 1882 and is home to the world's largest lava lake.

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.

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

These natural wonders have taken millennia to form into the stunning marvels they are today.

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

This ship carrying cargo and four church bells for the Catedral Metropolitana Nossa Senhora Aparecida ran aground in 1968.

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

In this African village, the walls of the chief's compound are painted with beautiful traditional designs.

These mysterious 1,000-year-old walls have revealed little about their past.

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

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

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

An enchanting rocky island of scraggly baobabs surrounded by an ancient sea and sprawling salt pans.

Wondrous stalactites house thousands of bats in these African caves.

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

This subterranean town of over 50 dwellings lies thirty feet beneath the Earth's surface.

Dozens of snakes are housed and worshipped within the walls of this Vodun temple.

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

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