Keywords
america, building, chicago, chicago transit authority, city, close-up, color image, communication, commute, construct, construction, door, glass, horizontal, illinois, metro transit, modern, motion, movement, photography, platform, public transportation, rail, shine, subway, train, underground, united states of america, urban, vehicle, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u15871324