An impressive ensemble of sculptures that survived the Soviet regime.

Launch site for nuclear war against Western Europe.

A 100-plus-year-old mill transformed into a hotel and restaurant.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

A secret climbing tree hides along the side of a Costa Rican road.

During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.

Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

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

Traditional 11th-century outdoor tannery.

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

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

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

One of the most spectacular canyons in the world.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

A lush indoor jungle fills this bustling Madrid transportation hub.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

The ceiling of Prohodna Cave in northern Bulgaria affords a peek at the sky via two deity-sized-eye-shaped holes.

Dynastic Home of the De Piro Family.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

This Stone Age solar temple aligns with the sun on each equinox and solstice.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

France's most famous cemetery, with some of its most curious tombs.