The tallest residential building in Africa is an unsettling Brutalist monolith.

Home to some of the oldest hominid fossils ever found.

An abandoned water park overtaken by the dunes.

Over a million items cram the shelves at Africa's largest shop of used and rare books.

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

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.

Monasteries on rock pillars, once accessible only by frayed ropes.

Giant marble phalluses on the sacred island of antiquity.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

The hallucinogenic center of the ancient world.

Seventeen oak trees sprout from the roof and walls of this tiny chapel without any visual evidence of roots.

This legendary city has been a tourist attraction for centuries.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

Cretean quarry suggests real-life site for ancient Greek myth of the man-eating Minotaur in his labyrinth.

Large collection from the 3rd millennium BCE.

This famous archeological mystery may be an ancient example of movable type.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

Where commuters walk through remnants of an ancient Greek necropolis.

What once sat in the world’s spotlight is today a largely disused ghost complex.

Hidden within a Netherlands crater is a stone bed that lets those who lie in it see the sky as a curved surface.

A preserved building where the dead were once watched for signs of life.

The resting place for anonymous victims of the Danube's dark waters.