In 1999, Las Vegas, Nevada began a major effort to install pedestrian bridges at major intersections along the Las Vegas Strip, to reduce traffic congestion and improve pedestrian safety. As a result, there are a number of escalators and elevators providing convenient and accessible use of the the pedestrian overpasses. If I recall correctly these two elevators were at the intersection linking the Aria, Cosmopolitan, and Planet Hollywood casinos, permitting pedestrian crossing of Las Vegas Boulevard.