A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

These barriers stand as stark reminders of Northern Ireland's troubled past.

This massive monument has been telling the time for 150 years—at a slight angle.

The ancient tomb acts as a calendar that keeps perfect time.

This Neolithic passage tomb forms part of a World Heritage Site.

Vast stretch of tide-pools with a unique Moroccan charm.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.

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

God's Saharan sandbox of wrath.

One of the most spectacular canyons in the world.

One of the tallest waterfalls in Africa is also home to a population of monkeys who enjoy the waters and the occasional guest.

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

The designated Jewish quarter in Fez dates back to the 15th century.

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

Single runway interrupted by a busy road that cuts across its middle.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Abandoned landscape once home to "the world's largest winery."

A 90-acre park on former landfill that hosts an annual kite festival.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

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