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

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

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

The housing complex served as an anti-fascist fortress during the Austrian Civil War.

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

A small marionette collection located within the dark cellars of an 11th-century Austrian castle.

This skeleton-filled altar piece served as a backdrop to one of the most iconic scenes in "The Sound of Music."

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

The mountaintop inspiration for Umberto Eco's "The Name of the Rose."

A striking memorial recalls thousands of Bolognese men and women killed fighting fascists in World War II.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

A large statue of Pope Gregory XIII in Bologna was disguised as Saint Petronius to avoid destruction.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

A diverse collection of wax, bone, papier-maché and mummified relics.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

Stuck in the arcade of Casa Isolani are three arrows of mysterious origins.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

Time has been frozen at this station since the bombing in 1980—or so it was believed.

A fake medieval village in the middle of Turin.