A blacklight mini-golf fever dream pays tribute to the iconic rock band.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

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

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

A statue honors the children who fought Nazis in Poland.

The silly symbol for an underground protest group is now scattered around the city.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

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

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Something's watching you.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

Every part of this unusual home is built into the sandstone rock.

A museum marks and documents the site of the Titanic's launch.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

In the town of Třeboň, carp is king.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

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

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

This doorless 20th-century elevator doesn't stop or slow down.