The National Gallery's new sculpture garden offers a bouquet of modern masters. Crowds of sightseers are coming upon a magical garden on the National Mall these days, a garden that reflects the power and beauty and tragedy and laughter and illusion of art," writes Smithsonian contributor Stanley Meisler. "Their find is the long-awaited National Gallery of Art Sculpture Garden, an oasis among some of the best-known museums and monuments in America." After languishing for more than 30 years, the National Gallery of Art's plans for a 20th-century sculpture garden finally got under way earlier this decade when the museum received a major donation from the Morris and Gwendolyn Cafritz Foundation that covered most of the cost of construction and the purchase of eight sculptures. Now the 6.1-acre park, which opened May 23, is playing host to a broad audience of admirers of modern sculpture...