Harry Potter once visited this massive limestone cliff, which was carved by an ancient glacial river.

A long, winding trek rewards you with a gorge so captivating it inspired a painting in the Tate.

Semi-precious Blue John stones have been mined in this cavern system for centuries.

Ancient snack bar of the Roman Empire re-opened.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Pompeii's less famous neighbor is still revealing her secrets.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

80 years of the Battle of Peasholm on a small English lake.

A century-old tradition has culminated in a small but singular collection of feline effigies.

One of the shortest streets in York has an especially odd name.

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

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

The tallest freestanding structure in the United Kingdom.

An enormous steel waterfall is a nod to the substance that shaped Britain's Steel City.

One of the last remnants of the Bessemer process that revolutionized steel production during the industrial age.

The UK's largest private house was the subject of a long-lasting political dispute.

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.