Secundair Kunstinstituut created “Words”, a light installation shown at Light Festival Ghent 2015 in Ghent, Belgium. Secundair Kunstinstituut has 6 more works in this atlas.
They appear to stand upright when viewed from the Walpoortbrug, not in perspective as you would expect.
Programme information from Lichtfestival Gent. Short excerpt quoted for reference; see the original page for full text, images and credits.