The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

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

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

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

Macabre astrological automaton clock dating to the late 1400s.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

The longest and widest floating bridge in the world.

A downtown park built on top of unclaimed graves.

A 1940s nuclear reactor built to produce plutonium for the Manhattan Project.

Nuclear reactor created the plutonium used on Nagasaki.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

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

Residents of Fremont in Seattle have considered it the center of the universe since the 1970s.

A wall of chewing gum moonlights as collective art.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

There must be a pun in this haystack somewhere...

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

A bust of the first president welcomes visitors to the only town in America called George, Washington.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

The first artificial white water river course in North America cuts right through an Indiana city.

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

A terrific purveyor of natural history objects and curios.