Chartres Cathedral, which was built in 1220, contains some of the most famous stained glass windows. Chartres exhibited the force that stained glass windows might wield more effectively than its predecessors, thanks to architectural improvements. The new windows at Chartres were designed by French artists and craftsmen who used vivid colors and intricate designs to demonstrate the beauty of God's creation and to inspire prayer. The best preserved example of medieval stained glass is found in Canterbury Cathedral. Built between 1072 and 1180, this magnificent structure was home to some of the greatest artists of the time. They worked on hundreds of pieces of glass, which can be seen today in about 100 of the cathedral's windows. Other notable examples include York Minster (1170), Notre Dame de Paris (1163-1225), and Lincoln Cathedral (1185). Stained glass was extremely popular in Europe during the Middle Ages. Many large churches were completely covered in glass, often from top to bottom. In addition, there are many small stained glass windows throughout Europe that show scenes from the Bible or saints' lives. Some of these can be viewed online through photo albums that reveal an almost 3D image when clicked upon. There are several museums in Europe that feature stained glass artwork.