The ruins of an 11th-century Norman castle with a rare, perfectly circular shape.

Sometimes an island, sometimes a rocky outcropping connected to the world by a tiny suspension bridge.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

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

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

A open air theatre built on a cliff by an eccentric British woman.

The stately remains of Llywelyn the Great's mighty fortress.

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

Largest lake in Great Britain measured by surface area.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

Eighty million natural history specimens call this gargantuan museum home.

A unique waterfall that some believe attracts the fairfolk.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

The largest greenhouse in the world is home to over one million types of plants.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

A fantastic castle rumored to be the birthplace of King Arthur.

One part local history, 99 parts gruesome haunted house.

The longest hedge maze in the world.

The world's largest collection of witchcraft regalia.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.