Memory Wall of Mr. Imagination
Winston-Salem, North Carolina
In 1999 the outsider artist Gregory Warmack -- who called himself "Mr. Imagination" -- was invited to teach art in downtown Winston-Salem. As a memorial to his visit, he took a 55-foot-long concrete wall outside the city's bus station and turned it into what he called The Memory Wall of Love and Peace. He asked everyone to give him their junk, and he then cemented it into the wall in colorful patterns, incorporating bottle caps, costume jewelry, seashells, buttons, tools, mirrors, hubcaps, and even a metal box of Altoids.
Mr. Imagination then went home and died in 2012.