This lovely little burbling creek is actually a deadly waterway that has dragged down everyone who ever set foot in it.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

The wartime boat shelter now doubles as an underground concert hall where musicians play on rafts along the waterway.

Ruins battered by centuries of war and disaster offer a wondrous glimpse of medieval Ireland.

The morbid items in this small and hidden museum are not for the weak stomached.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A whimsical menagerie of devils, krampuses, satyrs, and other horned creatures.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

Science meets wall art to highlight the beauty of famous mathematical equations.

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

Stumbling upon this whimsical wooded garden is like stepping into an enchanted forest full of philosophical musings.

Home to part of the world’s largest private collection of original manuscripts and documents.

An unusual assortment of art, furniture, and other curiosities.

A chaotic collection of coin-operated slot machines designed to delight and disturb in equal measure.

A young Italian couple has been locked in an embrace for over 6,000 years.

The ancestral home of beloved English poet Lord Byron has a bizarre history.

Local legends say that fairies used to dance in the moonlight here and invite handsome young men into their grottoes.

One man's quest to fix his toilet unearthed over 5,000 artifacts spanning more than 2,000 years of history.

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.

Hundreds of mossy stones engraved with bits of philosophy, literature and random musings.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

A floating underwater hotel, created by a Swedish artist.

Macabre symbols of death and mummies on display set the tone of this Italian purgatory church.

A wunderkammer of mysterious objects and stories.