A series of playful yellow penguins share a serious message about the environment.

A Baroque mansion with ties to legendary magicians and alchemists.

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

This artificial cave looks like something out of a fairytale.

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

Dedicated to the works of the legendary special effects artist.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

A beautiful window with the old Tesla Radio company logo.

A mocking tribute to the past and modern leadership of Prague.

A pre-war mansion that survived the modernization of Athens.

A miniature desert appears out of nowhere on the lush isle of Lemnos, like something out of a Greek myth.

An alien landscape on the banks of the Aegean Sea.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

The last remaining vestige of a popular 1999 public art display.

Home to a protest movement, a bombing, and a dramatic change in labor history.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

A recreation of a sign that Charles Dickens used to see on his walk home.

An oversized, oddly designed pedestrian overpass has drawn comparisons to a commode for pachyderms.

An homage to the humble watering can.

Pugs with antlers are found all over the city as a homage to one of its most famous cartoonists.

The soulless eyes of 82 bronze children stare on forever in remembrance of a horrifying World War II massacre.

A statue beloved by—and named by—the local townsfolk it represents.