Fosteau Castle in Thuin, Wallonia, is a fortified manor house with roots dating to the late 14th century, featuring seven elegant towers and a Gothic hall. Originally a rectangular, moated stronghold built by local nobility, it passed through noble families over centuries, most notably becoming the headquarters of General Reille, Chief of Napoleon's 2nd Army Corps, in June 1815. Designated a protected monument in 1979, the castle now houses exhibitions of antique furniture alongside displays honoring the General and a pharmacy museum. This imposing structure represents medieval military architecture and its evolution into a cultural venue, preserving both its architectural integrity and historical significance.
