Hakone Gardens is an 18-acre (7.3 ha) traditional Japanese garden in Saratoga, California, United States. A recipient of the Save America's Treasures Award by the National Trust for Historic Preservation, it is recognized as one of the oldest Japanese-style residential gardens in the Western Hemisphere. Notable features include a bamboo garden, a Zen garden, a strolling garden (the Hill and Pond Garden), tea houses, and the Cultural Exchange Center, which is an authentic reproduction of a 19th-century Kyoto tea merchant's house and shop