This is the Chicago Merchandise Mart. I’ve been here for a trade show this week. The Merchandise Mart was once the largest building in the world (in terms of floor space), until superseded by The Pentagon in the 40s.
Photo of the #LunaFire taken 10/18 from Angel Fire, NM. Pixel 4, Night Sight long exposure. That’s the Milky Way on the right hand side, not more smoke.