> by "lava lamp" I am of course referring to a shifting rainbow color > light show featured prominently at the top of one of the buildings > downtown... okay, it's only visible at night, but it's pretty > blatant... Is it the one in this photo? http://skyscraperpage.com/gallery/showphoto.php?photo=22899&papass=&sort=1 If so, I think that's the American Express building, based on http://www.phototour.minneapolis.mn.us/1756 There's a building with all the windows displaying a shifting pattern of colored lights that I see when driving north on 35W into downtown, but I think it's different from the building you mentioned. They change the colors, depending on the holiday or season. I find it distracting and have missed my exit at least once, because I was looking at the pretty colors. Now I may have to drive across the cities tonight, just to satisfy my curiousity.