[Bonsai Tree]

^While I agree with all the positives here, you seem to have forgotten one minor thing, the fact that these domes are prone to collapse in heavy snow, or snow melts. In fact, "the Dome" in Anchorage had a collapse just this year. Also, I don't think anyone can forget the Metrodome collapse in Minneapolis. These domes are finicky, and I don't like the chances of one through a particularly harsh Chicago winter, or snowstorm. These domes are best done in an area where they aren't prone to extremely heavy snowfall.