 Bab al @-@ Nasr is a massive fortified gate built in 1087 with rectangular stone towers . The name means " Gate of Victory " . The entrance vestibule is cross @-@ vaulted . There are two shallow domes over the upper levels of the towers . The walls are decorated with shields and swords , possibly Byzantine in design . Many French inscriptions on the Bab al @-@ Nasr indicate use of the fort by Napoleon 's soldiers , including " Tour Courbin " and " Tour Julien " . 
