Visitors to the o museum grounds, designed by PWP Landscape Architects, pass through an entry gatehouse and then drive along a maple tree-lined road, passing between two commissioned sculptures by Richard Serra and Tony Smith. The cobblestone entry court, anchored by another Richard Serra piece, has views of the pond, the residence and a commissioned Ellsworth Kelly totem sculpture which acts as the site's fulcrum. For a 150-acre estate, PWP had two hundred existing trees—root-pruned and transplanted to new locations on site—were supplemented with 1,800 trees raised in an on-site nursery. The grounds also feature Split Rocker, by Jeff Koons, on a hilltop.