saw those built in places like ancient city center of Yazd, they sure had the heating/cooling figured out. even saw a photo of ice storage building (looked a bi

saw those built in places like ancient city center of Yazd, they sure had the heating/cooling figured out. even saw a photo of ice storage building (looked a bit older). I mean, storing ice in the middle of the desert. no wonder persians were called 'educated arabs' in the past.