Stained glass are colored glasses in
which its history of usage dates back during renaissance period. They are
called 'illuminated wall decorations' as they trapped the light instead of
permeating it to reflect. People build churches or buildings with stained
glasses for (1) the art of glass itself as it delicately put colors on the
figure it wants to portray and (2) because it controls light making the window
more artistic. Using stained glass windows became more efficient and that’s why
people opt to use it.