This giant geoglyph of mysterious origins is now the site of neo-pagan rituals.

This tall stone wall with no door and ill-matched windows was built centuries ago, and used as a shelter for domesticated pigeons.

The seaside ruins of an ancient salt production facility.

This lonely cast-iron structure is the only wave-washed lighthouse of its kind left in all of Britain.

One family's environment-friendly hobbit-house in Wales.

Regency-era excess on the English Coast.

A perilous medieval road leading right into the sea.

A 4,500-year-old forest is slowly being revealed from beneath the sands of a Welsh beach.

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

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

The first archaeological site discovered by aerial photography.

Famously misunderstood wonder of the ancient world

This charming, narrow-gauge railway in the Thames Estuary is sometimes referred to as the "Train to Nowhere."

Legend says these rocks used to be hunting dogs, a story that may have inspired Sherlock Holmes' most famous case.

Take a sea tractor to the Art Deco hotel on the island that inspired Agatha Christie.

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

This former military airfield's claim to fame came from a lucky accident during the Second World War.

Grotto replete with mystical designs laid out in glued shell mosaics.

Gothic tower where Lord Alfred Tennyson wrote the poem "The Sleeping Beauty."

Where, exactly, the great aviator completed her transatlantic flight has caused some trouble in Wales.

A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

A section of a historic wooden trestle viaduct is preserved next to the railway line it once carried.

Recently restored menagerie of Victorian-era beasts.

Several land speed world records were shattered at this Welsh beach.