Possibly the oldest of Britain's ancient henges is also one of its most stark.

Stonehenge has nothing on Castlerigg’s views.

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

Pop culture has helped to keep this iconic British building from being destroyed.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

One of Scotland's most important modern structures, it just made the '100 Most Endangered Sites' list.

In Twickenham sits a small whitewashed castle that inspired Mary Shelley's 'Frankenstein.'

The forest that inspired Winnie-the-Pooh's Hundred Acre Wood can be found outside London.

A Victorian park cemetery, standing on the site of what was once the Great North Wood.

A hermit's tiny cell built into the cliffside that saved him in South Pembrokeshire.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

A mysterious monument where a woman who records say never existed was burnt alive for being a witch.

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.

The stately remains of Llywelyn the Great's mighty fortress.

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

Fantastically decorated underground chambers built in the 1760s.

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."

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

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

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

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Three bridges straddle a stream, one stacked upon the other.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.