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

Traditional 11th-century outdoor tannery.

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.

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

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

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

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

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

Largest island in the Baltic Sea experiences such idyllic weather that roses bloom in the middle of December.

The only road through the heart of Glacier National Park.

This nondescript tunnel has been featured in a number of iconic movies, from “Roger Rabbit” to “Back to the Future.”

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

Historic funicular railway, believed to be the shortest railroad in the world.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

Its floors are marked by colorful cues depicting Michigan's native fauna.

An ever-evolving wall of graffiti art off East Liberty Street.

The city is full of whimsical portals to another world.

The beams of the New College, Oxford dining hall come with an amazing story.

One of the three perfect vellum copies of this historic book known to exist is on display in a specially-designed case.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

This statue of the "father of television" stands prominently in the United States Capitol.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.