Visitors look up at the suspended metal and fabric clouds that are illuminated with LED lights at the Tidal exhibit as part of the Three Rivers Arts Festival on Monday. The LED lights in the clouds mimic the motion of Pittsburgh’s three rivers in realtime and also from data dating back to 1989, which was collected by lead artist Shilo Shiv Suleman. Suleman explained that the installation is meant to link the water in the viewers bodies to the bodies of water on the outside. (Photo by Antonella Crescimbeni/Post-Gazette) #Pittsburgh #PGH #412 #ArtsFestival #ThreeRiversArtsFestival #ThreeRivers #art #LEDlights #Tidalexhibit #PGPhotos