This automated sculpture of two men peeing will spell out text messages with their micturition.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

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

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

This Renaissance palace features a unique architectural design and is now home to the Ferrara National Art Gallery.

Pompeii's less famous neighbor is still revealing her secrets.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

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

Two stone columns flank the grand Venice square, but there were supposed to be three.

Go inside to really appreciate this 500-year-old technological masterpiece.

This medieval city gate is now a blend of the past and the modern world.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

A whimsical bridge adorned with decorative dragons.

The facade of this relic from the Klondike gold rush is decorated with over 8,800 pieces of driftwood.

This shrine to the patron saint of Alaska sits on a small tidal island and was built from the land’s own beach stones.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

The king of U.S. high points towers over every other peak on the continent.