Site of the United Nations 1944 beginnings, a 19th-century manse plus Philip Johnson-designed pavilion. Library for Byzantine, pre-Columbian and garden studies. Gift shop. Museum: Tu-Su 11:30 am-5:30 pm. Ten-acre formal gardens: Tu-Su 2-6 pm. Museum free. Gardens $10, seniors $8, students/children (12 and under) $5. Arrange in advance for guided tours.