Stained glass is non predictable and constantly changing piece of art, which brings joy along with its play of colors and lights. The technology of this piece of art has a long story. Since 5th century windows of churches and monasteries were tessellated with colored glass, which was inserted into wooden or stone frame. Later those kinds of frames were replaced with lead armature. The greatest peak of stained glass art was reached in early middle ages, when gothic churches, palaces, castles and houses of the rich people all around the Western Europe were decorated with this kind of glass. More >