This house's itty bitty size means no humans allowed.

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

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

One of the largest ossuaries in Spain is packed from floor to ceiling with bones.

One of the world's oldest universities houses an incredible collection of anatomical models, mummified body parts, and human bones.

An ancient Egyptian temple in the middle of Madrid, Spain.

Ever hear of the Milazzo Cage?

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

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

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

A chunk of the "true cross" is held in this small Portuguese church where modern day exorcisms are said to be common place.

Traditional 11th-century outdoor tannery.

The final resting place of the great navigator, or maybe his brother.

Legend says this cave housed a 16th-century cannibal and his family of 48.

This Irish museum in a historic 19th century market pays tribute to the glory of butter.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

A 200-year-old collection of oddities and medical paraphernalia.

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

This Cheshire museum has cuckoo clocks, a rare pipe organ and vintage motorbikes. But mostly cuckoo clocks.

The oldest working Brewery in Britain.