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

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

"Only the devil could play golf here."

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

A surreal, interdimensional shopping center and portal to another universe by Meow Wolf.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

Go back 50 years with a turn on one of the park's carefully restored vintage fairground rides.

This pedestrian walkway cuts through a cemetery and over several burial vaults.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

On this wooded path, a stained-glass window creates a spellbinding forest cathedral.

A 200-year-old prison that now houses a peculiar crime museum.

17th century puritan church with connections to the Salem Witch Trials.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

A moving memorial to the fallen and missing from WWI trenches.

This memorial museum chronicles the apocalyptic destruction of the First World War.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

This historic bathhouse that likely dates back to the 1300s.

The oldest known university in the world is in Fez, Morocco.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

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

This former royal palace with gorgeous gardens became the first museum in Morocco.

Ancient Phoenician and Roman tombs carved into the rock overlook the Moroccan coastline.