Besieged by war, this castle ruin has crumbled into a peaceful picnic spot.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

These ancient sunken lanes were naturally tunneled into the soft ground by countless footsteps.

A 6th-century stone lies at the site of the mythical battle waged between King Arthur and his nemesis Mordred.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

Fascinating town where normal life interfaces with the occult.

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

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

An Oxford museum where visitors can have tea with the Mad Hatter and climb through the wardrobe to a fantasy land.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

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

The remains of Crystal Palace Great Exhibition of 1851.

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

London's smallest police station is barely the size of a phone booth.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

Surreal riveted sea forts once protected the Kent shores from German attack.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

Rebuilt remains of a temple to Roman god Mithras.

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

This South London cemetery holds the remains of more than 15,000 people.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

The world's largest collection of witchcraft regalia.

The sign at the garden gate reads: “These Plants Can Kill.”