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.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

Created hundreds of years ago, the magical follies and landscapes at this park were almost lost to time before being restored.

London's old-school healing garden.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

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

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

One of the world's largest collections of pathological specimens.

Repository for more than 22 million pickled specimens.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

Scattered throughout London are ancient remnants of the city's former bounding wall.

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

Surreal riveted sea forts once protected the Kent shores from German attack.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

Eighty million natural history specimens call this gargantuan museum home.

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

Hear the quietest sound from across the dome.

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.