The topiary maze at the Habsburg hunting lodge.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

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.

A patriotic medieval knight in driven-nail armor raised money for widows and orphans of WWI.

Macabre museum devoted to historical Viennese murders.

Inside the corridors of this flea market, visitors are sure to find some obscure and odd treasures.

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

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

Museum devoted to the artificial language of Esperanto.

Handsomely crafted representations of our round planet.

This former insane asylum now holds a pathological anatomy museum.

The Habsburgs' royal collections of art and wonders.

The beautiful baroque library of the Hapsburg empire.

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

The resting place for anonymous victims of the Danube's dark waters.

Artfully arranged bones of 5,800 Austrians.

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

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

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

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

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

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

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