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

Oxford University's stateliest library seems designed to make students truly feel the weight of knowledge.

The site of one of the largest non-nuclear explosions in history, created when a massive bomb dump accidentally exploded.

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.

The beams of the New College, Oxford dining hall come with an amazing story.

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

Used as an example in one of the first dictionary entries for "museum" in 1706.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

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

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

The beloved fantasy novelist is buried near a church containing a whimsical etched glass window full of Narnia favorites.

There's a labyrinth of medieval chambers hidden deep below a 15th-century pub.

A 15th-century former coaching inn forms the implausibly grand entrance to a 1980s shopping mall.

This Bronze Age boat was found buried remarkably intact in an English gravel pit.

Inspired by a dream, a hermit carved out a home in this sandstone bank to live a life of contemplation and prayer.

A labyrinthine underworld of tunnels and caverns hides beneath the city.

The English Civil War began right here in 1642.

Set amid the remains of a secret WWII airfield, this barn was preserved as a memorial to Allied agents who parachuted into Europe.

This historic pub is a hidden gem for fans of Lewis Carroll.

The oldest inn in England served brew to the crusaders.

A striking 500-year-old mansion provides an unexpectedly sublime home for live deer and a menagerie of exotic stuffed animals.

Once-buried markers show England’s lowest land point keeps getting lower.

The medieval legend behind this holy well was one of the inspirations behind "Alice's Adventures in Wonderland."