Christ's blood preserved in a Belgian town.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

A naturally mummified 2,000-year-old man.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

The commemorative stone column conceals a secret laboratory.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

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

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

One of Europe's oldest libraries.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

The spot where three Protestant clergymen were burned at the stake during the reign of "Bloody Mary."

This 11th century tower is said to be the oldest building in Oxford.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

There are eight natural springs around town, each with a slightly different taste.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.