A seven-century-old jail tells a not-so-pleasant history of crime and punishment.

The largest 19th century panorama in the world still in-situ.

A miniature city, once ruled by the Queen of the Netherlands.

The site of a mysterious pony massacre is rich with extraterrestrial conspiracy theories.

A remote gravestone on the moor marks the spot where a teacher's body was found under mysterious circumstances that remain inexplicable.

This grave resides at the crossroad of three parishes.

The legend says that this English rock formation was once a hunter who was turned to stone by annoyed witches.

This tangled English forest looks like something right out of a fairytale.

Legend says these rocks used to be hunting dogs, a story that may have inspired Sherlock Holmes' most famous case.

A naturally mummified 2,000-year-old man.

The remains of the great moral philosopher reside in a university in London.

Charles Babbage's proto-computer, painstakingly brought to life.

Catacombs turned marketplace.

A museum wholly devoted to juvenescence.

Two plaques commemorate the site of Shakespeare's first theatre.

A clock designed to run with perfect accuracy for 10,000 years.

Residential building on the Regents Canal is a breeding ground for creativity and innovation.

Eighty million natural history specimens call this gargantuan museum home.

The final resting place to 300 Victorian-era pets hides inside the city park.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

The television series' iconic giant foot was borrowed from this classical painting.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

The remains of an ancient Roman teenager are memorialized at the base of a modern London landmark.