The oldest stone house in Paris was built by its most famous alchemist.

The celebrated eyesore created by starry-eyed sweethearts.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

The mystery of this small, brick pond eluded its possibly only investigator until his death.

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

Children's hospital in London that operates on royalties received from Peter Pan, which J.M. Barrie signed over in 1929.

An unusual round church in London with a Templar past.

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.