Modern art is typically a two way street; Its either garbage that anyone with hands and eyes can do or it is revolutionary, unique, requires skill, and exceptional execution. In the latest MCA sculpture exhibit we see the best that modern sculpture has to offer. The artist, Olafur Eliasson demonstrates geometric precision with various materials and a manipulation of light on a grand scale. One such work which is the crown jewel of the exhibit called, One Way Colour Tunnel is a functional archway composed of one-sided colored glass and stainless steel supports. The colors reflect off of one another creating shades and tints from natural light. All of the sculptures play with light in some form or another and it adds to the intrigue.  Another piece with a name that escapes me, is a large wall composed of hundreds of stones with the same shape and dimensions. The stones are uniquely arranged in a triangular joint system. When light is cast upon the wall, the wall appears to be moving in different directions because each stone is facing another in a unique way. Truly tedious work.