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

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

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

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

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

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

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

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

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

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

This cubist Vienna church building looks like some sort of alien stonehenge.

Located right outside of Vienna, visitors can take in expansive views of an ethereal forest.

Op-art architecture designed for happiness.

Handsomely crafted representations of our round planet.

A spherical "micro-nation" in the heart of Vienna.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

The topiary maze at the Habsburg hunting lodge.

Dine amidst exotic plants at this former royal greenhouse.

Macabre museum devoted to historical Viennese murders.

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

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

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

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

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