In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

Hidden beneath the streets of London is a secret subway that only carried mail.

This South London cemetery holds the remains of more than 15,000 people.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

This 2,000-year-old tree inspired the nursery rhyme "Rock-a-bye Baby."

Part museum, part piece of Arthurian-inspired history, this stately hall attracts King Arthur fans from miles away.

An open air haven for tropical monkeys in the damp moors of the English country.

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

This ancient church, rebuilt at least 3 times, is flanked at all sides by history.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

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

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

A open air theatre built on a cliff by an eccentric British woman.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

A fantastic castle rumored to be the birthplace of King Arthur.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Built in the 1300s, this magnificent building that hosted England's kings and queens transports you to the Middle Ages.

This small building nestled along the Dove River is seen by some as the birthplace of angling as a sport.

This home of a taxidermy hoarder is among the grandest and most singular of historic English estates.

A curious urban windmill once owned by a renowned British mathematical physicist.

When the public was consulted about a new piece of street art, they naturally asked for an enormous metal dragon.

A labyrinthine underworld of tunnels and caverns hides beneath the city.