I remember back in college the first time I ever saw a Rem Koolhaas house. I cannot remember the name of the house, now, but it was built for a wheelchair bound man and his wife. The house seemed simple enough at first glance, but it always seemed odd to me. Much later, I realized why: the house defied gravity. There was no simple explanation at to how this structure stood up. And this is the same feeling I got when I first viewed Stack. Initially, it didn’t blow my mind until I realized just how strong its illusion took hold of your imagination. Now, I find myself staring at this shelving for hours in awe. Okay, maybe not hours, but this furniture from Established & Sons‘ collection and the design house of Raw Edges garners, at least, minutes of deep pondering.