This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

The Tudor-style cottage in the middle of the square is not quite what it seems.

You can crawl inside this atmospheric 5,000-year-old tomb.

A well-studied colony of endangered bats roosts in this abandoned Victorian Gothic mansion.

65 million-year-old chalk outcroppings mark the end of the Jurassic Coast.

The largest known medieval map of the world.

Rare collection of medieval books under lock and key.

Across the islands, baked goods, sauces, and much more are for sale 24/7.

Classic game cookery takes center stage at what's widely considered London's oldest restaurant.

This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

Legends say that this small island was the final resting place of the Welsh saint of lovers.

This neolithic stone grave has been altered and restored so often its now more neo than lithic.

The oldest continual pilgrimage site in Britain was supposedly created by a gruesome beheading.

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."

Once home to a Scottish baronet, this 18th-century historic house doubles as a legendary art space.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

This Arcadian garden in the Pentland Hills boasts over 270 artworks by Scottish artist and poet, Ian Hamilton Finlay.

Described by William Wordsworth as a "World of Wonder."

Locals spent years successfully fighting to save this beloved Brutalist behemoth from demolition.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.