There are several explanations for the reference to “Iram – who had lofty pillars”. Some see this as a geographic location, either a city or an area, others as the name of a tribe. Those identifying it as a city have made various suggestions as to where or what city it was, ranging from Alexandria or Damascus to a city which actually moved or a city called Ubar. As an area it has been identified with the biblical Aram, son of Shem and the biblical region known as Aram. It has also been identified as a tribe, possibly the tribe of ʿĀd, with the pillars referring to tent pillars.
Source: Iram of the Pillars – Wikipedia