This grisly exhibit houses skeletons and weapons from a devastating 14th-century clash.

A king's bloodstained shirt is among the gruesome collection of artifacts displayed below Stockholm's Royal Palace.

Fascinating exhibits of prehistoric and ancient artifacts displayed with a uniquely modern touch.

The discovery of an old wall led to the creation of this fascinating museum about the city in the Middle Ages.

This hidden collection of everyday objects illustrates life within communist Poland.

Polish luminaries and masterful folk art find sanctuary in this unique cemetery.

A museum in the childhood house of a medical pioneer.

The skeleton of a whale that beached itself in this Irish town is now on display in their public park.

This ancient Irish religious site is covered in ancient carvings, many of which have barely aged.

Besieged by war, this castle ruin has crumbled into a peaceful picnic spot.

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

Mummified monks and the accidentally interred, in a 17th-century crypt.

Museum about life, death, and cannibalism in the Stone Age.

St George's Leprosy Museum depicts the gruesome afflictions of those suffering from the disease.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

The sign at the garden gate reads: "These Plants Can Kill."

This giant wooden treehouse within a sprawling garden has its own eatery.

This tiny museum's sizable collection is jammed into a former underground public toilet.

The Icelandic Sea Monster Museum explores the area's history of aquatic cryptid sightings.

An encyclopedic collection of mammal penises.

Staves, storm-calling, and of course, necropants.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

This disused church, left to the elements of the Arctic Circle's forests is open for exploration.

A replica of the home of a famous fictional troll family.