It's a three-dimensional wall installation composed of 88 hand-painted discs, accompanied by a mural above the ceiling.

PHILADELPHIA (WPVI) -- Visitors to Philadelphia will be greeted by a new public art installation as they travel through Terminal A at PHL airport.
The piece, entitled "Up Up and Away," was dedicated on Tuesday.
It's a three-dimensional wall installation composed of 88 hand-painted discs, accompanied by a mural above the ceiling.
The artist, Serena Saunders, took suggestions from members of the public about which scenes of the city to paint into her work.