The Muur van Geraardsbergen is a steep, narrow road with cobblestones in Geraardsbergen, Belgium. It is also known as Kapelmuur, Muur-Kapelmuur or simply Muur. The hill starts near the river Dender at 18 m and reaches the top of the Oudenberg at 110 m after 1,075 m at 9.3 per cent. Wikipedia