England's most notorious suicide spot.

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

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

Catacombs turned marketplace.

A 18th century graveyard and its astonishing cortege of macabre iconography.

400-year-old garden, restored to beauty.

The one-time stronghold of the noble Douglas family, now home to ghost sightings and nesting birds.

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

A mysterious artist-run cabinet of curiosities and library.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

This tangled English forest looks like something right out of a fairytale.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

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

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

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

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

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

360° views of the city plus five floors of optical illusions and hands-on science.

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

A pagan tradition of draping trees with rags eerily lives on.

This cramped crevasse saw the entire population of its island suffocated inside its depths.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

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