The Coliseum has a pretty good mural as you approach the field...I've walked through the tunnel on game day twice. Never noticed the blandness but only thought of the greats who walked through that tunnel over the years. Never thought of looking at the walls. Come to think of it I didn't notice anything great about ND or the Coliseum but I did notice the greats who also walked on the same flooring I was walking on. Reminds me of walk through the original Olympic Stadium.