An eerie former warehouse turned cistern turned movie set.

The oldest known university in the world is in Fez, Morocco.

Traditional 11th-century outdoor tannery.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

The other side is actually green.

A fortified city, home to a remaining population of five families

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

Morocco's Argania trees are infested with nut-hungry goats.

Mosaics, storks, and brothels—this ancient city has it all.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

Unexplained bald patches in the landscape grow and recede over time, as though they are somehow alive.

Bizarre living fossil only grows in a small chunk of the Namib Desert.

The largest known meteorite on Earth was too big to move.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

A desert that rolls right up to the ocean, where it's so dry animals live off the fog.

A colorful piece of contemporary art cheerfully clashes with Lyon's historical architecture.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

Hundreds of hidden passageways weave through the old quarters of Lyon.

Monsters and miniatures are held in equal esteem at this wondrous museum.

An art world insider finds himself battling for his artistic home.