Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.

One of Europe's oldest libraries.

Follow the original medieval paths that wind through this intriguing section of the city.

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

No one knows who created the statues or if they are arranged properly—let alone the artwork's real name.

This romantic, decaying 13th-century ruin on the edge of Sherwood Forest is reputedly one of England's most haunted places.

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

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

Fantastically decorated underground chambers built in the 1760s.

The childhood home of Earth's alien chameleon is a humble Brixton flat.

This beautiful "lagoon" is actually a toxic soup filled with cars, carcasses, and trash. When warnings couldn't stop people from going for a dip, the town dyed it black.

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

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

The forest that inspired Winnie-the-Pooh's Hundred Acre Wood can be found outside London.

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.

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

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

Western Europe's only representation of a Roman goddess still in its original location sits in an unassuming park.

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

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

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

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.