A 1,215-foot tunnel transports pedestrians beneath the River Thames.

Hidden beneath the streets of London is a secret subway that only carried mail.

Eighty million natural history specimens call this gargantuan museum home.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

This commemorative stone was erected near the first Scout campsite.

The world's only managed flock of mute swans was established as a factory for monk meat but is now an adorable sanctuary.

This former quarry is now a vibrant labyrinth of magical in situ sculptures.

In 1943 the British military took control of this village, telling residents they had to leave temporarily. The villagers were never allowed to return.

This grave resides at the crossroad of three parishes.

This historic Benedictine monastery brews a booze so toxic that it has often been blamed almost singularly for Scottish hooliganism.

Take a sea tractor to the Art Deco hotel on the island that inspired Agatha Christie.

According to legend, a noble knight and a terrible dragon lie beneath this storied hill.

The famous Alice Liddell designed this memorial after losing her sons in World War I.

The grave of Mrs. Reginald Hargreaves, who inspired the tale 'Alice in Wonderland.'

A stone, covered in metal, commemorating an event that happened somewhere else a thousand years ago.

A genuine Little Shop of Horrors.

A museum based on the collection of a Victorian family. Housed in a remaining Victorian villa.

This tiny town features a tiny town that acts as a 3D snapshot of the town during the 1950's.

This unlikely memorial honors the Canadian and Portuguese laborers who felled trees for the Allies in World War I.

The world's shortest funicular ferries beachgoers a whopping 128 feet from clifftop to shore.