The oldest working mechanical clock in the world.

A museum wholly devoted to juvenescence.

Giant naked man on a hillside.

A hidden tunnel leads to an abandoned slate quarry that's now a secret swimming spot guarded by cliffs.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

Sometimes an island, sometimes a rocky outcropping connected to the world by a tiny suspension bridge.

Cliffs full of fossils at the portal to England's Jurassic Coast.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.

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

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

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

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

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Largest lake in Great Britain measured by surface area.

Fascinating town where normal life interfaces with the occult.

England's most notorious suicide spot.

Giant, friendly pelicans in Central London, the most unlikely of places.

One part local history, 99 parts gruesome haunted house.

360° views of the city plus five floors of optical illusions and hands-on science.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Famously misunderstood wonder of the ancient world