Some say this medieval church is where the poet Dante married his wife and also met the love of his life.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Once a year, thousands of naked cyclists flood the streets of a Seattle neighborhood.

This working class sculpture pounds his hammer all the livelong day.

This Puget Sound military post has a long, turbulent history as a gateway to the Pacific.

This grand old 80-foot sequoia towers above the buildings in the city’s retail center.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

This former coal gasification plant found a curious second life as a popular public park.

A wall of chewing gum moonlights as collective art.

A giant Troll lurks under one of Seattle's oldest bridges.

A monument to the man who almost killed Hitler.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Plaques on its facade commemorate the Tiber's most destructive deluges.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

Architectural monsters are devouring this palace's every door and window.

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