Museum devoted to the artificial language of Esperanto.

Handsomely crafted representations of our round planet.

An exquisite Baroque church in Vienna's old town.

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

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

The final resting place for the remains of 143 Habsburg royalty.

The townhouse where the "Blood Countess" Elizabeth Báthory started her murderous career.

The beautiful baroque library of the Hapsburg empire.

Dine amidst exotic plants at this former royal greenhouse.

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

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

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

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

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

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

This automated sculpture of two men peeing will spell out text messages with their micturition.

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

Two stunning 17th-century libraries and a cabinet of curiosities.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

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

The hidden lair of an alchemist rediscovered in a 2002 flood.

A surreal statue honoring Prague's favorite literary son.

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