Two women with a flair for both adventure and artful clutter created this singular round home.

Gothic tower mentioned in Thomas Hardy poem "The Channel Firing."

A monolithic monument in Greater London.

A rotting air force base is now home to rare birds and scarce plants.

The intended purpose of this unfinished Elizabethan building remains a mystery.

Rare and wonderfully wormy cadaver art captured in brass for centuries.

The photographs of "fairies" that fooled much of the world (including the creator of Sherlock Homes) were taken at this English stream.

A quartet of rusting satellite goliaths are all that remain of a communication network that protected Britain from German and Russian air strikes.

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

The world's smallest commercial theater is set up in what was once a urinal for Victorian men.

An abandoned 18th century manse looks like something out of an Indiana Jones movie.

This overlooked street light once served as a KGB dead letter box.

A brick foundation and piles of listing building materials are all that remains of this World War II POW camp.

A modest stone circle in North Wales.

Britain’s longest ancient monument, this great 8th century earthwork was built to mark the boundary between what would become England and Wales.

A rare wooden coffin set vertically into the Gothic arch of an ruined church.

Where Aleister Crowley attempted to seize the Hermetic Order of the Golden Dawn in a mask and a kilt.

This surreal art house looks like a geometric version of a small chapel.

Don't be fooled by this fake medieval facade even if it is almost 300 years old.

A portly statue of a golden boy commemorates an unusual cause of the Great Fire of London: the sin of gluttony.

A mysterious crater-like pond has a spooky tendency to empty and fill with complete disregard to rainfall patterns.

An enigmatic natural rock formation with a manmade passage cut through the center.

This tunnel entrance is built to resemble a grand castle but no one is quite sure why.

A mysterious bridge over a sunken Roman road.