The Hunchback of Notre Dame by Book 3 Chapter 2 Page 13

; beginning with the Tour de Billy they were: the Porte Saint-Antoine, the Porte du Temple, the Porte Saint-Martin, the Porte Saint-Denis, the Porte Montmartre, the Porte Saint-Honor�.

All these gates were strong, and also handsome, which does not detract from strength. A large, deep moat, with a brisk current during the high water of winter, bathed the base of the wall round Paris; the Seine furnished the water. At night, the gates were shut, the river was barred at both ends of the city with huge iron chains, and Paris slept tranquilly.

From a bird’s-eye view, these three burgs, the City, the Town, and the University, each presented to the eye an inextricable skein of eccentrically tangled streets. Nevertheless, at first sight, one recognized the fact that these three fragments