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

This one-time health resort was used by aristocrats around the world.

A church of bones, decorated with 40,000 human skeletons.

A magnificent collection of imperial armor and weaponry.

This splendid tomb may look fantastic, but there's nothing in it...

The world's most important buildings shrunk to a tiny size.

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

Archduke Ferdinand II's collection of rare objects is considered one of the oldest museums in the world.

The beautiful, ornate weather station is the most popular geocache in Salzburg.

The amazing wonder cabinets of a very rich Austrian archbishop.

The world's oldest known salt mine.

The Habsburgs' royal collections of art and wonders.

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

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

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

Artfully arranged bones of 5,800 Austrians.

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

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

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

Handsomely crafted representations of our round planet.

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

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 beautiful baroque library of the Hapsburg empire.