This colonial fort is an intriguing example of Renaissance military architecture.

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

A glass and sculpture wonderland forms an oasis in a remote part of Kenya.

This beautiful, all-in-one museum, private residence, and bed and breakfast houses a rich collection of African art.

One of the capital's last independent milk bars remains a crucial community watering hole.

Stay in your own little bubble.

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

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

Artifacts showcasing the witchy history of Zambia.

This slowly crumbling mansion was home to one of East Africa's richest and most powerful slave traders.

A hollowed-out baobab that became the horrific final resting place of leprosy sufferers, with gruesome evidence to prove it.

The skull of an ancient hominid was discovered at this spot.

This secret facility trained seals for the Swedish navy during the Second World War.

The mystery of Brazil's "Land of Twins" has led to wild theories such as Nazi genetic experiments.