Amid the soaring grandeur of arches and spires lurks a more down-to-earth architectural flourish: the grinning head of a gargoyle. Singly and clustered, these intriguing creatures form as distinctive an element of Gothic architecture as the flying buttress. Nowhere are they more prominent than along the walls of French cathedrals, and this magnificently illustrated volume prowls the ramparts of those medieval buildings to discover hundreds of authentic...