A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

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

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.

The Habsburgs' royal collections of art and wonders.

A history of heat is on display at this unique Austrian museum.

Vienna's underworld of tunnels and subterranean rivers made an iconic appearance in a 1949 Orson Welles film.

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

The house that took a plunge into the facade of a museum.

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

What looks like a suicide in progress is actually a statue of Sigmund Freud.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

The first museum in the world devoted to sexual gadgetry.

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

A surreal statue honoring Prague's favorite literary son.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

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

Monument to a suicide protesting the Soviet invasion.

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

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