A subterranean house of worship carved right out of the bedrock.

This secluded walkway overlooks a magnificently wild London green space.

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

Follow the original medieval paths that wind through this intriguing section of the city.

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

The cedar tree in Highgate Cemetery earned its title by accident.

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

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.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

Fascinating town where normal life interfaces with the occult.

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

Giant, friendly pelicans in Central London, the most unlikely of places.

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

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

Eighty million natural history specimens call this gargantuan museum home.

A hands-off space for graffiti artists to hone and display their skills.

Northern Ireland's Brobdingnagian stepping stones.

Famously misunderstood wonder of the ancient world

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

A kaleidoscopic warehouse-maze of handmade neon signs.

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

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