precursors to both the free-plan and the architectural promenade. Geological layers and cultural memories have been uncovered, thus expanding the picturesque's grounding in history, time, ruin, and memory. The picture plane of the Picturesque has been thickened to include past and present, natural and cultural history-all understood through movement. As Constant writes in her essay on Mies's pavilion and Bois writes in his discussion of Serra's sculpture, meaning is construed through the interaction of the viewer with, through, and around the