This imprint of an old computer keyboard has a unique backstory.

The centuries-old obelisk may have inspired J. R. R. Tolkien.

England's largest white horse isn't even white.

This 15th-century fortification was built to defend bunnies.

A 14th century castle built on the seat of a mighty giant.

A relic from one of London's worst 19th-century slums.

These mysterious mazes carved on the rock may be up to 4,000 years old.

This ruin in a suburban park may be the place where Shakespeare's "A Midsummer Night's Dream" was first performed.

The wreckage of an old coastal trading vessel is only visible at low tide.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

A magnificent Victorian garden that brings the charm and style of old-time aristocracy to the 21st century public.

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

This 13th century castle is chock full of ghosts and impossibly rare cows.

Each spring this woodland floor is carpeted with purplish flowers as far as the eye can see.

These legendary stone steps were once used to haul coffins up the rockface.

The nearly 200-year-old folly has a secret spiral staircase hidden in one of its pillars.

This skewed English house has looked like it's going to fall over for centuries.

This Viking gravestone carved in a rare runic style was dug up from a London churchyard.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

This logic-defying 16th-century Tudor manor still stands to the delight and astonishment of onlookers.

Local legends say that fairies used to dance in the moonlight here and invite handsome young men into their grottoes.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

This magical museum celebrates the life and work of a seminal children's book writer (and occasional spy).