This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Old Danish castle immortalized in Shakespeare's Hamlet.

The Guardian of Tallinn.

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

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

Where commuters walk through remnants of an ancient Greek necropolis.

A subterranean house of worship carved right out of the bedrock.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

An alien church provides much needed silence in the midst of a Finland shopping center.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

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

A monumental underground karstic wonderland is also the water source for over a million citizens of Beirut.

After this one-of-a-kind palace was built the architect's hands are said to have been cut off to keep it that way.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

Go surfing on this urban wave, "hacked" by local surfers.

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

A preserved college lock-up that recalls a clubhouse approach to discipline.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

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

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.