I think I've gone overboard on public art, so this will be the last one, for awhile. I may revisit it later. This one I've made interactive, to keep you awake. I think the lack of comments in the past five days tells me my readers have been a bit bored with these art displays. Sorry!
To work the puzzle, click on the arrow in the bottom left corner of the puzzle. This picture is of one of the tiled arches at the North Fourth Art Center, on 4th Street.
My first attempt at solving took 5 minutes and 10 seconds. Try to beat my time (shouldn't be too hard), and post your time as a comment. Have fun!