These medieval monastery ruins are surprisingly overlooked by most tourists.

An oddly shaped tower built to mark the acquittal of Admiral Keppel in a controversial 1770s case.

This folly built to commemorate an aristocratic victory over Catholic rebellion plays tricks on the eye.

A folly built to satisfy a gentleman's bet that he could drive his horses through the eye of a needle.

This jewel of an engine is one of Northern England's finest surviving legacies of the Industrial Revolution, even catching the eye of Henry Ford.

The biggest and deepest Cold War bunker open to the public can be found in southeast England.

A hill carving of the legendary dragon that terrorized the village of Bures in the Middle Ages.

The historic villages and towns of Suffolk are filled with wonky wooden beam houses painted an unusual shade of pink. Unknown to many though, this sweet shade has a bloody history.

This English medieval castle is where King John died of dysentery.

The phone booths in this English town have distinctly milky hues.

What looks like missing grout is actually an old pub's peephole.

This mummified mermaid corpse is an aquatic curio that was eventually revealed to be a fake.

Stonehenge has nothing on Castlerigg’s views.

This incredible viaduct was part of the Victorian railway boom and helped the Midland Railway navigate tough terrain.

These remarkable cascades are the jewels of Upper Tees.

A series of idealized caves carved to entertain guests.

Legends say this red sandstone monolith and the dozens of smaller boulders that surround it were once a coven of witches—before a Scottish wizard turned them all to stone.

An impressive Neolithic henge with banks nearly 10 feet high.

Though this large circular site is now named for the legendary king, its history dates back to the Neolithic era.