In French Gothic architecture, Rayonnant (] ) was the period between c. 1240 and 1350, characterized by a shift in focus away from the High Gothic mode of utilizing great scale and spatial rationalism (such as with buildings like Chartres Cathedral or the nave of Amiens Cathedral) towards a greater concern for two dimensional surfaces and the repetition of decorative motifs at different scale, Chartres Cathedral, also known as the Cathedral of Our Lady of Chartres (French: "Cathédrale Notre-Dame de Chartres" ), is a Gothic Catholic cathedral of the Latin Church located in Chartres, France, about 80 km southwest of ?