A friendly pub with a sordid past in cock fighting.

An 18th century monument regularly tagged with unsettling graffiti referencing a 1940s unsolved murder.

This crumbling folly looks like an enchanted left over from Middle Earth.

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

Long-secret natural history museum, featuring the skull of a "Terror Bird."

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

Public access to clean drinking water was an instant hit among the masses.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

This mysterious underground cave in Shropshire dates back to the 18th or 19th century.

The oldest inn in England served brew to the crusaders.

A Victorian park cemetery, standing on the site of what was once the Great North Wood.

Man-made cave with enigmatic carvings, some say made by the Knights Templar themselves.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

This haunting stone chasm is a hotbed of mossy rock and English legend.

A village on the east coast of England that has almost completely eroded into the North Sea.

St. Mary's Asylum was isolated and abandoned before being converted into a Bed and Breakfast.

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

Besieged by war, this castle ruin has crumbled into a peaceful picnic spot.

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.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

A house of bones — but nobody is quite sure to whom they belong.

Fantastically decorated underground chambers built in the 1760s.

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.