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A remarkable medieval structure born from a 14th-century disaster.

A spiral staircase connects the limestone cave with Pembroke Castle, birthplace of King Henry VII.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

A mysterious bridge over a sunken Roman road.

Under a church hides a forgotten 13th-century ossuary containing the remains of around 2,500 people.

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

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

This lonely cast-iron structure is the only wave-washed lighthouse of its kind left in all of Britain.

A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

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

This Scottish manor house is a lush relic from the life of a literary great.

A midnight snack that lights up the night.

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

On this wooded path, a stained-glass window creates a spellbinding forest cathedral.

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

The last occupied troglodyte dwellings in England weren't abandoned until the 1960s.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

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

Legend says a witch conjured the world's third largest whirlpool to protect Scotland from a nasty pirate.

Scotland's only funicular railway is also the United Kingdom's highest.

This tiny little cave was said to have been a refuge for a saint with a glowing arm.