This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

The highest cold-water geyser in the world.

Eat first, shop later at this eatery within an Asian grocer.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

The birthplace of the ferocious William the Conqueror, this castle is awash in medieval history.

This museum preserves over-the-top masterpieces that once qualified artisans for membership into a medieval guild.

One of the earliest depictions of an Arthurian scene that is shrouded in mystery.

Fascinating town where normal life interfaces with the occult.

In the ruins of Glastonbury Abbey lies the alleged resting place of the legendary king.

This hill and tower are steeped in legend, from King Arthur to the Holy Grail.

A natural gas leak provides a flickering flame beneath a waterfall.

A Roman spa buried deep beneath the City of London.

This volcanic plug boasts the longest recorded history of any Scottish stronghold.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

A small Byzantine church lost in the middle of the mountains of southern Italy.

This Norman castle has been the scene of assassination plots, religious persecution, and Nazi conspiracies throughout its long history.

A dreamlike medieval church dug into the tuff rock, with unusual carvings and possible traces of the Templar knights.

Marking the ancient boundaries of asylum around Beverley Minster.

This medieval manor house was equipped with secret compartments for hiding priests.

A remarkable medieval structure born from a 14th-century disaster.