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

Looming communist pillar with a Czech twist.

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

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.”

Macabre astrological automaton clock dating to the late 1400s.

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

Metro station with a claim to rock n' roll fame.

Cold war icon and onetime "hole" in the iron curtain.

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

Where once there was a train station bathroom, there is now this German burger joint.

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

The most visited, and possibly most controversial, museum in Germany.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A German apartment building hosting as many trees as human occupants.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

An exploration of Malaysian heritage through the lens of traditional textiles.

Cartoon clouds and nature-inspired murals have transformed the streets of Kuala Lumpur.

Old Danish castle immortalized in Shakespeare's Hamlet.

Buy your fish and have it cooked to order in this bustling, eight-floor seafood market.

A remnant of Korea's colonial past lies forgotten in a hip neighborhood in Seoul.

Plenty of old carney magic still haunts this photogenic amusement park.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.