Mysterious 500-year-old tapestries depict a unicorn hunt.

The encased skull that is widely believed to belong to St. John the Baptist.

Eighty million natural history specimens call this gargantuan museum home.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

A museum dedicated to the alleged Roswell Incident.

Home to a protest movement, a bombing, and a dramatic change in labor history.

One of the world's most definitive collections of musical instruments, spanning all cultures and historical periods.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

Medical history with an amazing, if frighting, collection of wax diseases on display.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

An amazing collection of wax anatomical models and terratological models.

The astonishing collection of an infamous criminologist.

A cemetery housing wild west legends in South Dakota.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

Iron Age "bog person" preserved for over 2,300 years.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

A fantastic castle rumored to be the birthplace of King Arthur.

The world's largest collection of witchcraft regalia.

A museum dedicated to the Spanish occult in a town that was terrorized by the Inquisition.

Tucked away on the second floor of a small town library is one of the great private Victorian taxidermy collections looking today very much like it did in 1909.

An encyclopedic collection of mammal penises.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

Erotic art covers the walls of the largest ancient pleasure palace.

Pompeii's less famous neighbor is still revealing her secrets.