Answer: Stained glass windows are closely tied to THE ARCHITECTURAL DEVELOPMENTS OF GOTHIC CATHEDRALS. ... From pointed arches to rib vaults to flying buttresses, all of these techniques allowed Gothic architecture to replace the thick, dark walls of Romanesque cathedrals with thin, towering walls of colored glass.
In 1860, during the Second Opium War, the British and French forces burned the Old Summer Palace and looted the heads of the Chinese zodiac animals and many other cultural relics in the Old Summer Palace.