In spite of the looting, the fire and the passage of time, this one still shows appreciable vestiges; it serves in various places of support to constructions of a more recent past under which it disappears. It encloses the medieval administrative village, open, on the outside by four passages overlooking the 4 cardinal points. Only two remain: the North and the South. A round road lined it, quite rare, by a second underpass that went around the city.

Towers regularly reinforced the wall as the best preserved Madeleine tower today.

With a height of 9 metres and a diameter of 6.50 metres, this massive tower leaning against the ramparts communicates by its upper part with the circular path, visible on about 50 metres towards the East.

With its 3 metres thick base, it is built of stone block and flint embedded in the mortar, pierced by 3 loopholes at half height.

In 1926, the Madeleine Tower was listed as a Historic Monument.