A most unusual museum, this fabulous collection of modern, monumental sculpture benefits from one of the most stunning outdoor settings modern art has ever seen: 500 acres of rolling hills, meadows, and woodlands that, especially in autumn, are capable of converting contemporary-art doubters into passionate enthusiasts. Storm King's interplay between nature and human creativity is extraordinary. On view are nearly 100 large-scale works by some of the greatest American and European sculptors of the postwar 20th century, including Mark di Suvero, Isamu Noguchi, Alexander Calder, Richard Serra, Andy Goldsworthy, and, forming the nucleus of the collection, 13 works by David Smith (with the outdoor placement echoing Smith's studio in the Adirondacks). The newest, monumental work is Maya Lin's 11-acre, undulating, and ocean-like Storm King Wavefield (with "waves" reaching as high as 15 ft.). Every year Storm King presents a temporary exhibition of a couple of dozen works by a major sculptor. Though a warm, sunny day may be nicest to enjoy Storm King, the sculptures look and feel different under different conditions and in different seasons, so there is really no bad time to visit. Storm King, which celebrates its 50th anniversary in 2010, is a great place to spend an entire day, and perfect for introducing children to art; bring a picnic lunch (no food concessions are on the grounds). Guided tram tours make it easier on elderly and visitors with disabilities. You'll need several hours to see Storm King; you could easily spend an entire day here.