Even if you don't actually ride the city's light rail, we bet you've stopped to admire the public art at light-rail stops from the comfort of your car. One of our favorites is visible not only from the road, but also from the ground and even the sky, as it sits above Tempe Town Lake — right below Sky Harbor Airport's flight path. Artist Buster Simpson's display of LED lights puts an ever-changing rainbow above the lake, reflecting colors in the water. Stop and stare at the bridge long enough, and we know it sounds corny, but you might just feel like that bridge is speaking to you. Try it.