Sculpture Park Cologne

This guide to Sculpture Park Cologne follows a low concrete pavilion built in 2011 by a then-largely-unknown Japanese architect, Sou Fujimoto, whose design blurs the line between building and garden. It traces the park itself back to 1997, when collectors Michael and Eleonore Stoffel opened these grounds along the Rhine to a rotating biennial exhibition that has since cycled through more than 150 artists. Step through the pavilion's low concrete opening and see whether you can tell if you're inside a building or just deeper into the trees.