An incarceration museum on the spot of possibly the oldest prison in England.

This network of narrow, medieval passages has the most delightful name.

This WWII aircraft museum presents its wrecks like taxidermy, complete with recreations of the crash sites.

This foreboding medieval castle was twice besieged by barons rebelling against the English king.

This former abandoned hospital, a complex of stunning 19th century buildings, once housed 2,000 psychiatric patients.

The sign at the garden gate reads: "These Plants Can Kill."

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

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