Author 'Ghislain' (Id 225488 ) : Of course this is not Versailles. This small castle in the commune of la Hulpe, moreover, has not as much to chimneys but... a swimming pool and rooms with views of a huge park with water bodies. However this was a Roy, who had erected : the king of soda. The soda Solavy has multiple uses in both industrial and domestic that we enjoy every day. Praise be to Mr Solvay ! Lien : Https://fr.wikipedia.org/wiki/Proc%C3%A9d%C3%A9_Solvay