Richard Long, tagliamento river stone ring (1996) – art park. Photo © Francesco Zanet – Tiziana Pers

Bruce Nauman, truncated pyramid room (1988) – art park. Photo © Francesco Zanet – Tiziana Pers

Bruce Nauman, truncated pyramid room (1988) – art park. Photo © Francesco Zanet – Tiziana Pers

Dan Graham, bisected two-way mirror triangle (1997) – art park. Photo © Francesco Zanet – Tiziana Pers

Peter kogler, ohne titel (2009-2010) – art park. Photo © Francesco Zanet – Tiziana Pers