One of the oldest trees in Britain may have been witness to some of the country's formative moments.

The view that inspired the scenes of Dracula's first landing in England.

This early version of the guillotine was used to execute the man responsible for its construction.

Grotto replete with mystical designs laid out in glued shell mosaics.

This king penguin is a knighted brigadier of the Norwegian Army.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

The curious and tiny collection contains some very odd objects.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

A succession of eerily contemplative iron figures lead from a Scottish museum to the sea.

There's a labyrinth of medieval chambers hidden deep below a 15th-century pub.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

An American ghost town hides along a side street in Scotland's capital.

This tiny little cave was said to have been a refuge for a saint with a glowing arm.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

An English artist has turned an unassuming ex-council house into a time-lost house of mystery.

A sweet symbol marks the place where torturous executions were once carried out.

A house of bones — but nobody is quite sure to whom they belong.

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

Eclectic final resting place of the controversial explorer.

A familiar otherworldly creature guards this 12th-century Scottish abbey.

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.

This abandoned asylum in Wales might look haunted, but it's still beautiful.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.