I-10, one of the major East-West freeways in Houston was recently expanded. In some areas it is up to 24 lanes, including toll lanes and service roads. Some of the overpasses are so long that they feel like small tunnels. TxDOT (Texas Department of Transportation) has done some nice work of decorating the overpasses. A lot of lonestars and some funky color schemes. In addition, at the Bunker Hill and Gessner exists are two sets of these towers. I don’t think they are purely decorative, with no function. They light up at night.