This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

These unique stepping stones hug a river's edge to take hikers on a journey through a limestone gorge.

Zambia's smallest national park is home to one of the world's largest annual mammal migrations.

Artifacts showcasing the witchy history of Zambia.

A secluded natural oasis hidden deep along a rainforest trail.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

One of the most detailed and historically accurate collections of Ugandan artifacts depicting Bahima tribal history, culture, and daily life.

Where the White Nile River dramatically cascades between Lake Kyoga and Lake Albert in Uganda.

The home of half the world's population of critically endangered mountain gorillas.

The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.

Made famous by "Star Wars," these troglodyte homes face an uncertain future.

The original film set of Luke Skywalker's Tatooine home from the 'Star Wars' trilogy.

Buildings from the fictional planet of Tatooine still litter the Tunisian desert.

The Voodoo Superstore of the world.

This sacred, circular cave is lined with pools so clear and still that it's hard to tell where the water begins.

The largest game reserve in Africa is home to thousands of species but refuses to house humans.

Stunning ruins of what was once the center of one of the greatest empires in East Africa.

A salty red wasteland in Tanzania is a breeding spot for endangered flamingos.

Every Friday, Sufi dervishes whirl around the tomb in a trance-like state as part of a sacred ritual called dhikr.

These otherworldly caverns form Earth's oldest known cave system.

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

Largest cave system in Africa.

Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

Over two-thirds of the world's population of giant tortoises live among this coral formation.