Each time a baby is born in Ghent, these streetlights flash in silent celebration.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Brussels' favorite peeing boy has a sister.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

This hidden courtyard in the Andorran capital hosts a unique contemporary sculpture park.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

On holy holidays, Israel's second president used this room atop Mount Zion as a refuge to read the Torah.

This unassuming oasis elevated just above the busy streets of Jerusalem offers one of the best views of the Old City.

Oldest Protestant church in the Middle East, designed to resemble a synagogue.

The only quarter of the Old City not dedicated to a major world religion.

The ruins of an important pilgrimage destination for worshippers of a Maya fertility goddess.

Few of the many visitors to this resort town know of its hidden Maya ruins.

A small collection of iguana-infested ruins hides amid Cancún's bustling hotel zone.

Underwater art project will double as a massive artificial coral reef to help regenerate the damaged ecosystem.

An ancient Egyptian temple in the middle of Madrid, Spain.

The last planned Soviet city was built for the former residents of Pripyat after the Chernobyl disaster.