This unique bridge curls up like a caterpillar to let boats pass and then unfurls again to span a small canal.

A tongue-in-cheek arcade where the games are based on everyday life.

This unique building in the main square stands out among the city's typically Baroque architecture.

A World War II-era sign in Valletta is a reminder of when Malta was besieged so severely that food needed to be rationed.

One Maltese man’s hobby became an extensive collection of restored automobiles, motoring paraphernalia, and antiques.

The bones of prehistoric animals and early signs of human habitation have been found inside Malta's "cave of darkness."

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

The Jesus tree of Malta bears a striking resemblance to Christ on the cross.

This cubist Vienna church building looks like some sort of alien stonehenge.

A 19th-century artistocrat's mansion, turned into a library, hidden in a modern library.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

A museum in the childhood house of a medical pioneer.

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

Mining, a local filmmaker, and a philanthropist doctor all commemorated within a small space in suburban Edinburgh

This painting of a beloved dog will be on display at the Scottish National Gallery at long as the museum exists.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

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

Microscopic scenes; some call it novelty, some call it art.

This public observatory is home to the "celestial cannon," the longest pointable telescope in the world.

This platform is now a memorial dedicated to those who were deported during the Holocaust.

This obscene artwork on the side of a newspaper office pokes fun at a rival paper's former editor-in-chief.

A portable, wooden replica (minus the hyphen) of Hamburg’s iconic crooked coffee shop.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

Started as a kitchen garden, now the second largest botanical garden in the world.