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

The other side is actually green.

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

One of the most spectacular canyons in the world.

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.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

This subtle Berkeley paving stone actually marks off a lawless tube of air that extends into space.

A chain of bells connect the California Missions and honor the legend of the "King’s Highway."

The world's first motel is now an administrative building for an apple farm.

One of the last surviving buildings of a once large and thriving Chinatown.

An alley covered with 20 years of bubble gum.

A hotel and restaurant serving as the mecca of kitsch.

A deserted hodgepodge of experimental structures designed by nearby university students.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

A lonely monument to the original Silicon Valley tech campus.

The headquarters of a secretive order is also a beautifully-designed park.

An extensive collection of ancient Egyptian artifacts and mummies.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A striking, modern church devoted to a nun who loved God and beer.

This spooky statue sits outside a famous Prague theater.

Looming communist pillar with a Czech twist.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

What looks like a suicide in progress is actually a statue of Sigmund Freud.