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

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

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

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

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

A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.

This outsider art house has gone from clinical creation to astounding artwork.

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

One man's little-known private clock museum hides inside a historic farmhouse, set amidst the Austrian countryside.

Artfully arranged bones of 5,800 Austrians.

American soldiers discovered Europe's best one-liner at the end of World War II.

A three-shelf library serves as a memorial in the Jewish cemetery of Krems.

Mozart's skull may be held in this collection, but definitive proof continues to elude scientists.

The amazing wonder cabinets of a very rich Austrian archbishop.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

The world's largest historic armory was established by independent citizens to defend themselves from the wars of larger forces.

The personal charnel house of Anton Bruckner.

The shell of a medieval fortress offers commanding views of the area it once protected.

Narrow-gauge railway with its own personal power grid.

An Austrian house of bones filled with hundreds of intricately painted skulls.

Bizarrely-painted church designed by a controversial artist.

Each year melting snow turns these Austrian hiking trails into scuba zones.

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

Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.