The Mons Memorial Museum covers the city's experience of both World Wars, with particular depth on the First World War. Mons saw the first major engagement between British and German forces in August 1914, and then again on the last morning of the war in November 1918 — a four-year circle that the museum documents with archival material, personal testimonies, weapons, uniforms, and maps.
The museum is well-designed and bilingual (French and English), which reflects the historical connection between Mons and the British forces who fought here. The area around the city is dotted with Commonwealth War Graves Commission cemeteries and memorials; the museum makes a good starting point for exploring them. Allow two hours.