Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

Left by the Devil, an ancient quarry or just plain old erosion, this enigmatic rock pillar rises 28 feet from the hillside.

This 1913 single-screen cinema is a charming survivor in the age of the multiplex.

Though much of the castle was robbed of its stones, the underlying earthworks are among the best-preserved in England.

A folly built to satisfy a gentleman's bet that he could drive his horses through the eye of a needle.

A collection of early 19th century trams set in a reconstructed period village.

A tribute to the women who quietly kept the local steelworks alive during both world wars.

The sculpture is made of more than 100,000 knives collected to raise awareness about violence.

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.