Ditto that. I haven't done the Mirror Lab tour yet, but have heard great things. Kitt Peak is worth visiting for the night observing programs (they have a cou

Ditto that. I haven't done the Mirror Lab tour yet, but have heard great things. Kitt Peak is worth visiting for the night observing programs (they have a couple, see https://www.noao.edu/kpvc/Prog/ https://www.noao.edu/kpvc/Prog/) as well as just to go up during the day and take in the view.