Truth be told, the art on the walls of The Clark is not really my favorite. But the grounds: Love em. A big part of the main building is a Tadao Ando addition, all slabs and planes and crevices. On the hill above the museum there are over a hundred acres of fields and woods. Most of the way up the hill there’s a small jewel of a polyhedron: Crystal, by Thomas Schutte. I love this structure. You enter through a pair of unmarked doors at the narrow end of the form, and the interior opens up to frame a big old tree that stands alone on the hill. The material has weathered over the years, accumulating muddy footprints and dry leaves in its obtuse corners.