American muralist Blue Sky (formerly Warren Edward Johnson) painted Tunnelvision on the wall of the Federal Land Bank in Columbia, S.C., in 1975. “The idea for ‘Tunnelvision’ came in a dream. I woke up early in the morning and just sketched it out. I’d already seen the wall, I’d sat and studied it for hours, just waiting to see what would come before my eyes, and nothing came. And early one morning, I woke up and it was there. … That’s why I call it ‘Tunnelvision.’ Because it was a vision in a dream.” Wikipedia adds, “Rumors abound that several...