Spend the night in this formerly abandoned traditional Scottish village.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

Northern Ireland's Brobdingnagian stepping stones.

This series of Scottish caves has no clear purpose other than baffling historians.

The atmospheric road was never meant to be so creepy.

An unusual round church in London with a Templar past.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

This 1920s Dutch barge is now a floating bookstore.

Famously misunderstood wonder of the ancient world

A 30-acre garden inspired by the principles of modern physics.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

Eighty million natural history specimens call this gargantuan museum home.

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

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

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

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

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