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

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

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

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

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

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

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

One part local history, 99 parts gruesome haunted house.

This London plaque marks the spot where David Bowie's famous alien made his debut.

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

The Florence Nightingale Museum is home to the famous nurse's most treasured possession: her beloved pet owl.

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

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

Abstract dinosaur models in London.

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

The legendary building that needed ghostly approval before being built.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The only structure left with direct ties to the Salem witchcraft trials of 1692.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The ghostly remains of an accidental sea.

Notorious artist squat renovated into legal studios.