Stained Glass is a pleasurable art and craft from centuries. It is a hobby for many, and an art for the few. The term stained glass can refer to coloured glass as a material or to works produced from it. Throughout its history, the term has been applied almost exclusively to the windows of castles, churches and other significant buildings. Although traditionally made in flat panels and used as windows, the creations of modern stained glass artists also include three-dimensional structures and sculpture.