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

An exquisite Baroque church in Vienna's old town.

Artfully arranged bones of 5,800 Austrians.

The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.

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

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

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

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.

The "Mona Lisa" of funerary art.

This peculiar Italian elevator runs both horizontally and vertically.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

A stunning cemetery famous for its extraordinarily delicate & lifelike mourning sculptures.

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

This building features dozens of faces along its facade, although one is a bit chilling.

A beloved local artist has been honored with this statue of a man emerging from a toilet.

The wreckage of a tragic plane crash is on display at this museum devoted to a famous Italian conspiracy.

The remains of an ancient Roman city are hidden underneath Bologna's beautiful public library.

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

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

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

The mummified relic of St. Catherine sits forever on a golden throne.

A magnificent, glittering building tucked into a tiny Bulgarian mountain town.