This modest German chapel has been in use for more than 1000 years.

This 13th-century UNESCO-listed "lion's house" mosque is named after a repurposed lion sculpture.

This 12th-century gatehouse has survived England’s many religious upheavals

Before construction of the famous Tintagel Castle, this site in Cornwall was likely a prosperous Dark Age trading port.

The eyes and ears of this tower keep watch over Malta’s Grand Harbor.

This Moorish fortress has guarded Málaga from the slopes of Gibralfaro hill for nearly a thousand years.

This 11th-century fortress is now the seat of Aragon’s state legislature.

This figure was carved in the likeness of a voyeur, so that every time he spied across the street, he would find only himself staring back.

Eight sides, one incredible story — the Gregg-Crites Octagon House is one of Circleville's most fascinating architectural treasures.

It’s a painted window that looks completely real, hiding on a building in the market square.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

A ruined castle stands atop a hill surrounded by dragon lore.

Centuries of warfare, tragedy, executions, and poetry come together in this 13th-century fortress.

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

Every half hour the eye-rolling clock face sticks out its tongue to mock the good citizens of Koblenz.

A monumental golden thumb rises as an iconic homage to Nouveau Réalisme, bold in scale and unapologetic in spirit.

Cages that once displayed the bodies of executed leaders hang from a German church tower.

According to a satirical conspiracy theory that persists today, this German city of 300,000 is a hoax invented by the CIA.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

This proud Teutonic warrior rises out of a German forest heralding a victory and measuring lightning.

This unique Renaissance castle was turned into a home for Nazi occultism.

Latvia’s first skyscraper, nicknamed ‘Stalin’s birthday cake.’

With a design inspired by traditional Latvian textiles, this monument honors the Latvian people who suffered under Soviet occupation.

The reconstruction of this prominent building fulfilled a long-written command.