This magical museum celebrates the life and work of a seminal children's book writer (and occasional spy).

One of Europe's oldest libraries.

This Gothic Revival castle used as a shooting location for "The Secret Garden" and other films.

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

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

In Twickenham sits a small whitewashed castle that inspired Mary Shelley's 'Frankenstein.'

An abandoned tank sits in an empty London lot as a symbolic middle finger to local city planners.

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

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

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

Lovers proclaim their unbreakable bond by leaving their names on locks fastened onto the Shoreditch fence in East London.

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

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

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

Eyam took steps to quarantine themselves and keep the plague from spreading.

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

Artists and musicians now rule over this former rail station.

A petite castle folly in the English countryside.

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

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

One of the largest sculpture collections in the U.K. features history's greats, from Bob Dylan to Galileo, in bronze.

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