Senlis' Gothiccathedral was built between 1150 and 1191. The cathedral is unusually bright, but the stained glass, though original, is unexceptional. The magnificent carved-stone Grand Portal (1176), on the western side facing place du Parvis Notre Dame, has statues and a central relief relating to the life of the Virgin Mary. It's believed to have been the inspiration for the portal at the cathedral in Chartres.
