The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

Legions of Roman soldiers bathed in this ancient spa complex under a Budapest transit station.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

Once the home of a hermetic monk, this cave now houses a small church.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

Real bones which are said to have belonged to a Polish dragon.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

Cold war icon and onetime "hole" in the iron curtain.

Puppet theater and museum holding a collection of more than 300.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

An army of sleeping knights sculpted by a self-taught local artist beautifully depict an old Czech legend.

Mysterious painted skulls in Moravia.

Two monstrous faces loom over a village in Czechia.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

A saintly relic hidden in a Prague church basement.

An old asylum graveyard that's been abandoned for half a century attracts those seeking a dark thrill.

Countless grotesque faces stare out from this eerie Prague art wall.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Walk through Czech history in Prague's largest graveyard.

The hidden lair of an alchemist rediscovered in a 2002 flood.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.