The walls of this medieval church are covered with perfectly preserved frescos, including a pristine example of the Dance of Death.

These rare statues are one of the few remaining material witnesses to Old Prussian culture.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

These imposing walls and towers look more like the ruins of a fortress than a monastery.

This secret collection of the strange and occult was rediscovered in a forgotten room of an old house.

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

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

The final resting place of the poets Shelley and Keats.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

Thousands of well-dressed mummies below a monastery.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A 16th-century horror show built in a lovely Italian garden.

A spooky juxtaposition of caves and graves gives this legend-filled cemetery a particularly haunting vibe.

Follow the original medieval paths that wind through this intriguing section of the city.

One of England's most famous churches hides a pair of little known architectural treasures.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

This Scottish manor house is a lush relic from the life of a literary great.

Enter the world under the hill at this ancient UK burial chamber.

The curious and tiny collection contains some very odd objects.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Home to the most complete dodo remains known - one head, and one foot.

A red sandstone freestanding monolith rises out of the sea in northern Scotland.

Rare collection of medieval books under lock and key.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.