On June 15th 1815, the Duke of Wellington decided to establish his field hospital at the farm of Mont-Saint-Jean. During and after the battle of Waterloo, near 6000 soldiers were treated there.This former, hardly ever sanitized hospital is now a museum. Discover the work of surgeons in times of war, the surgical instruments used, the weapons, uniforms, ammunition ... with an impressive recontextualisation of the facts.Stories and illustrations of the work of the Scottish surgeon Charles Bell, present at the site in June 1815, are also on show.The broader history of the farm is also presented. More than eight centuries old, it was occupied by the Order of Malta, turned into a farm and housed a brewery. Take the opportunity to enjoy the Waterloo beer, brewed on site.