Abbot Suger oversaw the construction of the abbey church of Saint-Denis in the mid-12th century, introducing many elements of the new Gothic style including pointed arches, ribbed vaulting, and increased use of stained glass windows. This new style spread across France with the construction of great Gothic cathedrals like Chartres, Reims, and Amiens that featured towering naves, elaborate facades, stained glass, and sculpture. The Gothic style also developed distinctive national variations like the Perpendicular Gothic style seen in English cathedrals and the emphasis on dramatic sculpture in German Gothic cathedrals such as Naumburg.