Artists have long been drawn to these atmospheric 12th-century ruins.

These medieval monastery ruins are surprisingly overlooked by most tourists.

This amazing trail among the many waterfalls around Ingleton has been enchanting visitors since 1885.

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

The bizarre headgear looks like it was made for a fool, not a king.

Home to Alan Turing, the cracking of the Enigma code, and Captain Ridley's shooting party.

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

A little-known ruin with a convoluted history and a fascinating latrine drainage system.

Rare collection of medieval books under lock and key.

Fascinating town where normal life interfaces with the occult.

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

Museum celebrating the history of computers, especially their role in codebreaking.

On a site with a long military history, a 1980s shelter.

A collection of early 19th century trams set in a reconstructed period village.

Once a palace for the Archbishop of York, these 15th-century ruins now serve as a haunt for history buffs.

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

The first museum in the world devoted to sexual gadgetry.

A dramatic sculpture high up in Yorkshire with vistas on an industrial scale.

Though much of the castle was robbed of its stones, the underlying earthworks are among the best-preserved in England.

The oldest warship in Europe is still afloat.

A curious urban windmill once owned by a renowned British mathematical physicist.

A vortex fountain that seems to rise out of the ground.

A gorge full of caverns where early humans lived alongside cave hyenas, giant mammoths and wooly rhinoceroses.

Great Britain's only hat-making museum.