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

The heads of two giant mythological water horses honor Scotland's horselord past.

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

Artists and musicians now rule over this former rail station.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

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

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

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

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

This hidden green space is the city's second largest conservatory.

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

A church that bred legends, and served as an inspiration for the Da Vinci Code.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

The largest greenhouse in the world is home to over one million types of plants.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

A cluttered and astounding collection of antiquities and curiosities.

This 1920s Dutch barge is now a floating bookstore.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

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

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

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

London's smallest police station is barely the size of a phone booth.

The remains of Crystal Palace Great Exhibition of 1851.