A breathtaking flower tunnel bursts with beautiful golden blossoms.

This Manchester laundromat is hiding something.

Large-scale contemporary artworks tower over fields and lurk in forests around a Jacobean manor house.

This beautiful "lagoon" is actually a toxic soup filled with cars, carcasses, and trash. When warnings couldn't stop people from going for a dip, the town dyed it black.

One of the largest sculpture collections in the U.K. features history's greats, from Bob Dylan to Galileo, in bronze.

Charles Babbage's proto-computer, painstakingly brought to life.

The bar where "The Great Train Robbery" was planned was once a nexus of high society and low morals.

A network of concealed passageways lies within a busy London Underground station.

This abandoned asylum in Wales might look haunted, but it's still beautiful.

Western Europe's only representation of a Roman goddess still in its original location sits in an unassuming park.

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

A site of pagan worship which still attracts people looking for fairies.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

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

Created hundreds of years ago, the magical follies and landscapes at this park were almost lost to time before being restored.

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

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

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

A unique waterfall that some believe attracts the fairfolk.

Spend the night in this formerly abandoned traditional Scottish village.

A historic house left in "dramatic still life."

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