The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

The anatomical-pathological collection of a man who changed surgery.

Rebuilt remains of a temple to Roman god Mithras.

One part local history, 99 parts gruesome haunted house.

A tongue-in-cheek arcade where the games are based on everyday life.

This South London cemetery holds the remains of more than 15,000 people.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Gravity seems to fail at this intriguing Swedish attraction.

Known locally as the Jungfrutornet, this Medieval tower hides a dark legend.

Walking through this narrow gorge will make you feel like you've fallen into a fairytale landscape.

A replica of the beloved character's house, modeled after the author's own drawings.

A Bronze Age stone ship said to be the grave of the mythical founder of Gotland.

His body was found mysteriously preserved in a Swedish mine over 40 years after his initial disappearance.

A Chinese meditation center in the middle of rural Sweden, partly funded by a member of ABBA.

Archaeologists are still unraveling the secrets of the brutal massacre that wiped out this ancient fort.

A catapult rock from Gotland’s 13th-century civil war is still lodged in Scandinavia's best-preserved medieval city wall.

Ancient stone graves shaped like ships provided a Viking-like burial to carry the dead to the afterlife.

An otherworldly, fossil-rich cobble beach holds Viking graves, cairns, and other remains.

These mysterious circular formations are actually remnants of 19th century gristmills.

This fantastic cave remained unexplored until 1948 when three schoolboys discovered a hidden entrance.

A long-disputed lighthouse built on the wrong side of a Finnish/Swedish island.