Human-made caves excavated to hide a secret society of wealthy pagans.

A masterpiece of Art Deco architecture hidden in plain sight in West London.

An enormous alien invades Woking, England, as an homage to the H.G. Wells classic 'The War of the Worlds.'

This peaceful park saw the beginning of an extraterrestrial invasion in H.G. Wells's 'The War of the Worlds.'

A statue of the heroine who stopped time to save her betrothed.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

The last remaining example of the boatmen's perches that once dotted the south bank of the Thames.

Ship-sized kinetic sculptural fantasy.

A discarded movie prop that was the original monolith for "2001: A Space Odyssey."

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

In this scale model, our neighboring planets are represented by metal spheres spread across an English village. The nearest stars are represented by spheres in California and Australia.

The "Heroine of Dunkirk" rescued over 7,000 Allied troops during the historic World War II evacuation.

No one is sure what to do with this WWII shipwreck that sits at the bottom of the Thames, still loaded with tons of explosives.

This abandoned gun tower was built to defend the River Thames from a French naval attack.

A relic of medieval punishment marks the center of this quintessential English village.

An oasis of calm, nestled in the English countryside.

A mysterious bridge over a sunken Roman road.

The eternal resting place of the last highwayman hanged in England.

A giant roundabout made up of six smaller roundabouts can befuddle the uninitiated.

Home to one of the tallest church spires in Europe, this historic church once played host to King Henry VIII and Anne Boleyn.

"The Most Wonderful Wonder that ever appeared to the Wonder of the British Nation."

You can climb to the top of the column built to honor the "father of British inland navigation."

Local legend says this unusual chimney is actually a broken-hearted man's tomb.

This unusual geoglyph was built as a warning so low-flying aircraft wouldn't scare the zoo animals.