This tiny little pool is said to be home to a malicious mermaid named Jenny Greenteeth.

The view from this giant Stone Age toad is unexpectedly beautiful.

A brick foundation and piles of listing building materials are all that remains of this World War II POW camp.

This Georgian architectural masterpiece is the only cloth hall left in Britain.

A copy of the brutal decapitation device that predated the French Guillotine by about 200 years.

6000-year-old site covered in more than 50 megaliths.

The collapse of the brand-new dam caused one of the worst floods in British history.

This haunting stone chasm is a hotbed of mossy rock and English legend.

This tallest folly in the world began its life as an elaborate factory chimney.

Probably the smallest museum in the world, housed in a disused phone booth.

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.

A stone obelisk towering over the surrounding countrysides beckons hikers across the rolling moors.

Helped by a surprise posthumous donation this small town toy museum features over 5,000 vintage playthings.

Some of England's last cave dwellers lived and worked within this huge cave.

Semi-precious Blue John stones have been mined in this cavern system for centuries.

A historic Georgian building and warm springs.

Once the largest unsupported dome in the world, beating out the Pantheon and St Peters in Rome.

The last of the 19th-century booze-free bars has been slinging teetotal tonics for over a century.

One of the largest mechanical models of the solar system in the world.

This Cheshire museum has cuckoo clocks, a rare pipe organ and vintage motorbikes. But mostly cuckoo clocks.

A rotating bridge that carries a little canal over a larger one.

This historic club for wayward boys has shaped some of the biggest names in music almost as much as they have shaped it.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

Hidden on the urban banks of a Manchester river are a series of abandoned waterside industrial sites.