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

One of the most spectacular canyons in the world.

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

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

Brussels' favorite peeing boy has a sister.

A little sculpture with a large wardrobe.

Cozy basement bar sports an inventory of over 2,000 beers.

A natural history wunderkammer in the middle of the desert.

Rumor had it that these concrete crosses scattered across the Arizona scrubland helped align spy satellites. (They didn’t.)

The cinder cone volcano with a less than complimentary name.

A geological mystery on Camelback Mountain.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

An artificial crater field that trained astronauts for lunar exploration.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Ancient pueblos built into the base of a natural canyon wall.

The world's largest military aircraft cemetery.

This historic national park is covered in the stunning ruins of red rock pueblos.

The Magical World of George Phar Legler.

See massive fossils that are over 200 million years old in northeastern Arizona.

A self-built castle made by a mysterious man.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.