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

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

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

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

An abandoned horror film set sits eerily along a highway through Hollywood's "door to the desert."

The other side is actually green.

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

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

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

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

Monkeys lounge around at this 13th century temple.

Six times a day a train runs right through the middle of this Thai street market, sending vendors scrambling.

Modern design and unusual architecture make this mountaintop temple no ordinary Buddhist retreat.

A small museum in the Golden Triangle tells the story of the opium drug trade that gripped Northern Thailand.

A three-table eatery sits inside the home-kitchen of a seafood virtuoso in Bangkok's Chinatown.

Temple of a million beers.

Cavemen, elephants, and eagles greet passengers driving through the town's main intersection.

This Bangkok high-rise looks like a rudimentary LEGO elephant.

On stormy days debris from this unfinished and abandoned skyscraper rains down on the Bangkok streets.

At the right time of day, sunlight floods through the roof of this cave and illuminates the small pavilion hidden within.

An enormous dragon scales the walls of this 17-story temple.

The capital of Cambodia is named after the hill on which this ancient temple complex stands.

Originally a meeting place for foreign correspondents and war reporters, the FCC remains an atmospheric spot for sunset drinks in Phnom Penh.

Though it was originally dedicated to the Hindu god Shiva, Baphuon was converted to a Buddhist temple in the 15th century, complete with a massive hidden statue.