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

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

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

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

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

The astonishing collection of an infamous criminologist.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

This automated sculpture of two men peeing will spell out text messages with their micturition.

A saintly relic hidden in a Prague church basement.