This stately estate house features a tower covered in a bright, modern mural.

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

Large-scale contemporary artworks tower over fields and lurk in forests around a Jacobean manor house.

A 6th-century stone lies at the site of the mythical battle waged between King Arthur and his nemesis Mordred.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

A network of concealed passageways lies within a busy London Underground station.

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

Artists and musicians now rule over this former rail station.

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

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

A little slice of Japan and its aesthetics in London's Holland Park.

Repository for more than 22 million pickled specimens.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

London's old-school healing garden.

The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

The largest of London's subterranean rivers and once a mad, bad center of London life.

This 1920s Dutch barge is now a floating bookstore.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

A fantastic castle rumored to be the birthplace of King Arthur.

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

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

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

The atmospheric road was never meant to be so creepy.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.