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

Countless grotesque faces stare out from this eerie Prague art wall.

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

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

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

A Jenga-style cylindrical tower of books that appears to go on forever.

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

An exquisite Baroque church in Vienna's old town.

The solemn exterior conceals an opulent interior of this 17th century church.

Physicist’s epitaph provides final confirmation to a career of turmoil.

Collection dedicated to funeral rites, equipment, and mourning rituals of the Viennese.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

Museum devoted to the artificial language of Esperanto.

An elaborate shrine dedicated to the four corners of the world unfortunately misses its mark.

These mammoth-yet-narrow crevasses in the Earth are perfect for taking an otherworldly swim.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

Apartment complexes built into huge repurposed natural gas tanks.

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

A silly medieval mural preserved on the side of a Viennese house.

Legends surround an ancient tree trunk riddled with nails for good luck.

This museum promotes informed contraception by documenting its often secret past.

Baroque celebration of the end of the Great Plague of Vienna.