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

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.

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

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

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

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

One of the world's largest collections of pathological specimens.

A cluttered and astounding collection of antiquities and curiosities.

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

Spend the night in this formerly abandoned traditional Scottish village.

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

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

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

An incarceration museum on the spot of possibly the oldest prison in England.

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

Remnants of a Victorian garden feature sitting in public woodland.

The anatomical-pathological collection of a man who changed surgery.

A historic house left in "dramatic still life."

The fountain marks the area where hundreds of accused witches were burned at the stake.

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

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

Catacombs turned marketplace.

Eighty million natural history specimens call this gargantuan museum home.

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