This tiny little pool is said to be home to a malicious mermaid named Jenny Greenteeth.

Puzzles within puzzles hide a golden treasure in this hedge maze.

This unchanged Victorian park is rumored to have been the inspiration behind Peter Pan's Neverland.

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

The only fixed chain and post trail in Scotland snakes its way along the base of a towering seaside cliff.

These ruins are a hidden gem, complete with fantastic views over the cliff edge.

Cliffs full of fossils at the portal to England's Jurassic Coast.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

A beautiful ruin of a 14th-century Plantagenet castle built by a medieval mercenary.

19th century museum with an eclectic mix of curiosities, from Egyptian artifacts to items on archery history to the skull of the world's oldest horse.

This picturesque archeological site looks like it was pulled straight from a fantasy novel.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

A sea cave with a waterfall and Viking past

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.

The oldest candy store in the world has been selling traditional sweets since 1827.

A meandering boardwalk across the bogland leads to a "stairway to heaven" with sublime views.

This giant wooden treehouse within a sprawling garden has its own eatery.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

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

This crumbling folly looks like an enchanted left over from Middle Earth.

A remarkably well preserved tower dating all the way back to the Iron Age.

This picturesque view of the Scottish Borders was beloved by Sir Walter Scott.

A house of bones — but nobody is quite sure to whom they belong.