A window into a long-lost world, these colorful tiles advertise a long-defunct range of purgative teas, harmless smokables, and diarrhea cures.

A small church ornamented with medieval erotic sculptures.

The most elaborate of 12 medieval arched doorways to the old city of Burgos.

For more than half a millennia, this automaton has rung an hourly bell.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

This small chapel built into rock is the oldest place of worship in Luxembourg.

A masterpiece of modern architecture that caused quite a stir in Paris, recreated in Bologna half a century later.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

Go surfing on this urban wave, "hacked" by local surfers.

A fearsome dragon clings to a corner of Munich's city hall.

The patron saint of spinsters grasps a container of dried blood.

The footprint of a frustrated devil in Munich's Cathedral.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

The scars of World War II are preserved on its walls.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

A subterranean display of public art and architecture.

An abandoned train station in Munich constructed for the 1972 Olympic games.

This grove of ghostly cedars was killed in 1700 by an enormous tsunami, felt from the United States to Japan.

When life gives you Prohibition, open a bar in Juárez.

Germany's last remaining Lenin statue has become a lightning rod of debate about the country's divided past.

A city's controversial tribute to its founder depicts townspeople flashing their bare behinds.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

The Guardian of Tallinn.