Beveled Glass
One of my earliest memories of stained glass was a simple, geometric, beveled glass transom in a Victorian era gray stone on the block where I grew up in Chicago's Wicker Park neighborhood. I remember noticing the clear glass pieces with the prismatic treatment along the edge of each piece. It is curious to note that over a hundred years ago, such windows were made with the intention of casting rainbows into the interior environment to create a dramatic and beautiful effect. With the profuse availability of quality beveled glass today, this sort of environmental enhancement is very feasible.