An astonishingly accurate water clock that doubles as an hourly spectacle in this Berlin shopping area.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Europe's first floating restaurant is home to a hilarious legend.

The silly symbol for an underground protest group is now scattered around the city.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This demon atop the Notre-Dame de Paris looks utterly bored.

A mechanized clock where a man fights off a dragon, crab, and rooster.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

The celebrated eyesore created by starry-eyed sweethearts.

This bridge was constructed from the rubble of the infamous Bastille.

Wall after wall of this French seaside neighborhood is intricately decorated with seashells and corals.

The oldest inn in England served brew to the crusaders.

A labyrinthine underworld of tunnels and caverns hides beneath the city.

When it came to designing his own small office building, the eccentric architect wasn't afraid to show the world what he could do.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

Since 1768, the pillar at Guildhall Market in Bath has been a hub of economic transactions.

Created by one of England's most prolific labyrinth designers, inspired by Bath city history.

An authentic, seaworthy replica of the ship that sailed to Newfoundland in 1497.

This pedestrian footbridge honors Pero Jones, an enslaved African who lived in Bristol.

This church is said to have connections to the Knights Templars.

A beautiful bronze statue of the greatest fossil hunter of the 19th century.

Swarms of dainty flying insects swarm into the Petaloudes Valley to get busy.