Inside the Vauban ramparts on the southwest edge of the old town, the Ramparts Cemetery is one of the most atmospheric burial grounds in the Salient. During the war the earthworks provided shelter for the wounded awaiting transport from the front; the cemetery grew up alongside the dressing stations inside the walls. The 192 graves include British, Australian, and Canadian soldiers.
The setting makes it distinctive: the grave markers are set against the old earthworks, with the moat and town behind you and the flat Flemish countryside visible ahead. The ramparts themselves — designed by the French military engineer Vauban in the 1680s — were one of the few pre-war structures that survived the bombardment largely intact, because they are earthworks rather than masonry. You can walk the full circuit of the ramparts from here.