A preserved block of timber buildings from the city's industrial era in the Middle Ages.

An architectural oddity hides in plain sight on this iconic London bridge.

Semi-precious Blue John stones have been mined in this cavern system for centuries.

The storied English village that pretended to be insane inspired NYC's nickname and the fictional namesake in the DC Comics universe.

The Tudor-style cottage in the middle of the square is not quite what it seems.

This network of narrow, medieval passages has the most delightful name.

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

This amazing 15th-century mural remained hidden in plain sight for centuries.

The view that inspired the scenes of Dracula's first landing in England.

Seat of the Duke and Duchess of Devonshire for centuries.

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.

This antique prison is a tourist attraction with a sordid past.

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

There's an exclusive Beefeaters pub hidden in the Tower of London.

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

Grab a cuppa at England's first and only domestic tea plantation.

Eyam took steps to quarantine themselves and keep the plague from spreading.

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

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

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 oldest inn in England served brew to the crusaders.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.