The Denver Mosaic, conceived in 1961 for an office building designed by architects Joseph and Louise Marlow, has a unique place in the life and practice of Belgium architect and artist René Heyvaert (1929-1984). In this publication the entire mural is reproduced in 4 strips; the top and the bottom half of the left wall, followed by the top and the bottom half of the right wall. Photography and text: Arnaud Hendrickx.