The remains of a magnificent medieval fortress that was the capital of a vast empire.

An eerie former warehouse turned cistern turned movie set.

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

People have been living in the cave houses on this Italian hillside since the Neolithic era.

Traditional 11th-century outdoor tannery.

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

Founded as a refugee camp, now a popular tourist spot.

At this faithfully preserved medina off the Moroccan tourist circuit you can walk through six centuries of history in one day.

This elaborate hole in the ground was built as a sacred site for an ancient civilization.

Mysterious tombstones thought to be remnants of Atlantis.

This one-of-a-kind archeological site is home to strange prehistoric ruins, the original use of which is still a mystery.

Ancient cave tombs known as the "houses of fairies."

The mountaintop inspiration for Umberto Eco's "The Name of the Rose."

This Torino museum honors a soldier who kept the city safe using barrels of exploding gunpowder, losing his life in the process.

A fake medieval village in the middle of Turin.

Now an entertainment complex, the Lingotto building was once an avant-garde auto factory with a test track on the roof.