The most visited, and possibly most controversial, museum in Germany.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

A subterranean house of worship carved right out of the bedrock.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

An ancient city exhumed from the depths of the ocean.

The largest prehistoric ruins south of the Sahara, once a powerful center of international trade.

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.

Hoax, mistake, or evidence of dinosaurs in human times?

A battle between nature and architecture in the Cambodian jungle.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

Ha Long Bay's "Cave of Surprises" houses a popular phallic rock formation.

An extravagant monument to an extravagantly unpopular Emperor.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

This 16th-century Moroccan fortress-turned-armory museum offers prime views of the historic quarter in Fes.

This former royal palace with gorgeous gardens became the first museum in Morocco.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

Traditional 11th-century outdoor tannery.

Vast stretch of tide-pools with a unique Moroccan charm.

Crumbling necropolis set high above Fez.

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

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

The other side is actually green.