A submerged village appears when dam levels drop.

There's a labyrinth of medieval chambers hidden deep below a 15th-century pub.

The world's oldest model village.

A vortex fountain that seems to rise out of the ground.

Museum celebrating the history of computers, especially their role in codebreaking.

Built to hold the worst of the worst of the Nazi war prisoners.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

A museum marks and documents the site of the Titanic's launch.

This lonely cast-iron structure is the only wave-washed lighthouse of its kind left in all of Britain.

A magnificent winding road through a steep valley, with deep natural caverns at the bottom

A gorge full of caverns where early humans lived alongside cave hyenas, giant mammoths and wooly rhinoceroses.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

Near Birmingham, England three and a half miles of top-secret tunnels housed a World War II “shadow factory” and a Cold War nuclear bunker.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

A 550-square-meter micro-nation off the coast of Britain.

The biggest and deepest Cold War bunker open to the public can be found in southeast England.

A 4,500-year-old forest is slowly being revealed from beneath the sands of a Welsh beach.

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.

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

An abandoned tank sits in an empty London lot as a symbolic middle finger to local city planners.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

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