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

Banksy's image of a naked man dangling from the window of a sex health clinic.

One of Bristol's best-hidden gems has ties to Lord Byron, whence it became the nation's first reformatory school for girls.

Recently restored menagerie of Victorian-era beasts.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

The castle still holds traces of the abandoned Roman fort it was built atop.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

The largest known medieval map of the world.

Beasts and branches swirl in sandstone carvings, interrupted by one strange creature.

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

This Roman amphitheater is said to be King Arthur's legendary Round Table.

The only medieval bridge in Britain with its defensive tower still in tact.

This former Welsh metal factory is now a lovely abandoned relic but was once one of the industry's world leaders.

Go deep down into the earth to experience the world of Welsh coal miners.