The lower town was partly built on land reclaimed from the sea. Granville's military past remains, the upper part of the old town is surrounded with the consisting of the ramparts from the fifteenth century, the drawbridge (Grande'Porte), the bloody theatre of the "Siège des Vendéens" in 1793, built in the 15th century, destroyed and then raised in 1727, and listed as an historical monument since 2004. Inside the walls of the upper town are some beautiful houses of which several are concentrated on "Rue Saint-Jean". On the "Pointe du Roc" overlooking the town, the Bazeilles barracks built in 1758, the Gênes-Champagne barracks built in 1788 and the battery built in 1942 by the German occupiers have been listed monuments since 1987 and 1994.