This foolish Victorian sea fort was converted to a deluxe hotel.

This stately estate house features a tower covered in a bright, modern mural.

Largest lake in Great Britain measured by surface area.

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

The decaying ruins of Wales' first asylum for the mentally ill.

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

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.

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

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The longest hedge maze in the world.

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

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

Northern Ireland's Brobdingnagian stepping stones.

The atmospheric road was never meant to be so creepy.

These fantastically named natural pools look like something out of a Scottish myth.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

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

19th century tunnels burrowed under Liverpool.

The fairy tale castle of the "fairy-tale king."

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.