Robert Morris: Observatory, 1970-1977. Earth, water, grass, shells, steel, Bavarian granite, wood. East Flevoland/The Netherlands near Lelystad, at the crossing of Houtribweg and Swifterringweg. On both the longest and the shortest day of the year, the rising sun is captured in gigantic steel sights. On other days, too, an interesting play of sun and light is to be seen.