Photography gallery of Montreuil sur mer's ramparts

The first walls were built in the 9 th century.
Reinforced in the 13th century, they were reduced during the 16 th century after the siege of 1537.
The walls of the low town were abandonned to the south-east;
the remains are one of oldest urban fortifications in stone preserved in France.
Errard de Bar-le-Duc, Antoine de Ville and Vauban were successively responsible for strenchtening the fortifications.
The Western front has five round towers (13 th century), a postern,
a bastion called "bouillon" which is near the old Paris Gateway.
The Southern front has two 13 th century round towers.
On the Northern front, the Boulogne Gateway was re-built in 1828.