The oldest garden in Prague, once part of an medieval orchard.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

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

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

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

A grumpy old water goblin guarding an old mill on the Devil’s Stream in Prague.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

A surreal statue honoring Prague's favorite literary son.

This spooky statue sits outside a famous Prague theater.

Monument to a suicide protesting the Soviet invasion.

A significant example of Czech cubist architecture—a style you won't find anywhere else in the world.

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

Macabre astrological automaton clock dating to the late 1400s.

The first museum in the world devoted to sexual gadgetry.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

The grand complex of buildings that comprise Liverpool's Exchange Flags includes a vast World War II bunker that has been frozen in time.

Erected in memory of Sir Arthur Conan Doyle, who was born close to this spot, this statue commemorates the author and his famous detective.

An artist's whimsical transformation of everyday objects.

Large-scale contemporary artworks tower over fields and lurk in forests around a Jacobean manor house.

These semi-natural waterfalls hint at the park's Victorian-era industrial past.

Six beautiful wooden giants are hidden around Copenhagen.

This was once a hall in which a 16th-century royal banquet was hosted by King James VI of Scotland.