This monument sits at the foot of a mountain from which legend says enslaved people jumped to their deaths.

This small group of sand dunes manages to pack in a strange rainbow of colors.

The largest piece of cut lead crystal adorned a grave for 75 years and is now the shining star of a glass museum.

Traditional 11th-century outdoor tannery.

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

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

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

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

The other side is actually green.

One of the most spectacular canyons in the world.

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

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

Largest Roman Catholic church in North America.

The country's oldest continually-operated mini golf course lies hidden in plain sight, eclipsed by one of D.C.'s most popular tourist attractions.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

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

This collection of reclaimed landmines acts as both an exhibition of their deadly history and as a shelter for children affected by them.

A battle between nature and architecture in the Cambodian jungle.

A shrine built to combat the bad karma of a commercial venture.

Bangkok's men with dangerous jobs come here in search of protective talismans.

Bangkok celebrated its shifting monarchy with a militaristic homage to democracy.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.