Quarters One on Rock Island Arsenal is an established and recognizable landmark in the Quad Cities area. Perched on the banks of the Mississippi River, the house harkens back to an earlier time. The massive size, clean lines and pastoral setting gives the edifice a sense of grandeur. The third floor roof and the tower provide sweeping vistas of the Quad Cities area. One can imagine families on the tower roof in the summer watching riverboat traffic on the main channel or new agricultural implement factories in Moline.