These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

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

London's smallest police station is barely the size of a phone booth.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

One of the shortest streets in York has an especially odd name.

Follow the original medieval paths that wind through this intriguing section of the city.

It's possible to walk inside one of the largest Neolithic tombs in Britain.

This tiny traditional smokehouse is the only one left in this historic fishing port.

These planks were originally installed to hold the dead.

These 20-foot jaw bones honor a time when the leviathan bones were a sign that whalers survived the hunt.

A strange and ancient landscape hides the dark, cavernous remains of a 5,000-year-old flint mine.

The bizarre headgear looks like it was made for a fool, not a king.

A beautiful ruin of a 14th-century Plantagenet castle built by a medieval mercenary.

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

A local museum honors the overlooked discoveries of Mary Anning, one of the first professional fossil hunters.

This chain of artificial lakes was an ideal test ground for the aircraft that would carry the "bouncing bombs" used by the WWII "Dambusters" squad.

One of the highest Roman forts in Britain is set amid dramatic scenery on a notoriously difficult road.

An impressive armored bronze effigy marks the tomb of one of the medieval era's greatest warriors.

A petite castle folly in the English countryside.

Deep in the countryside lie the remains of one of the grandest Roman dwellings in Britain.

In the ruins of Glastonbury Abbey lies the alleged resting place of the legendary king.