I was driving north on CO Ro 8 to St. Cloud to pick-up my daughter from daycare. I was watching the sky because I read in the paper that the Blue Angels were flying into town that day. Above the tree line in the direction of Hwy 10 I saw a hovering square object. It was dark and looked mechanical, reminded me of a transformer type object (weird comparison, but true). I watch the object hover for about 4 minutes and then it disappeared as I drove behind a small group of trees.This was 100% not an airplane, helicopter or any other flying vehicle that I have seen. Since it was in broad daylight and I am sure other people saw this too.If you did, please comment.