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

Hidden in the hills is a mysterious stone structure, known only to a few.

This historic observatory was established to keep shipwrecks from littering the Cape of Good Hope.

Haven for Cape Fur Seals, until the Ring of Death of jumping Great White Sharks arrives.

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

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

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

The world's largest bioluminescent area was undiscovered by science until 2005.

This cave located in the badlands of Somaliland contains some of the oldest cave art in Africa.

One of the oldest brick structures in Freetown.

This national park is home to unique vegetation known as woodland savannah.

Home of the ruins of a British slave castle.

This river island in Sierra Leone is home to impressive biodiversity and the country's first community conservation program.

A British general, a suggestive tree, a map of paradise.

The remains of a 19th-century school and living quarters are perched atop a mountain surrounded by a thick tropical forest.

A schooner, nicknamed "The Unsinkable," with a long history of survival in the Indian Ocean.

In the middle of a busy residential neighborhood, a small roofless church being reclaimed by nature.

A newspaper editor turned this abandoned island into a tortoise nature preserve that's now the world's smallest national park.

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

This tiny, tranquil Senegalese island serves as a powerful symbol of the Atlantic slave trade.

This park was designated by UNESCO as an Endangered World Heritage site.

This unique religious structure is an architectural gem with arresting ocean views.

Dakar is home to one of the oldest African art institutions in West Africa.