The Hakone Open-Air Museum

5 Best Day Trips from Tokyo | Condé Nast Traveler

"This mountainside sculpture park is a popular outing for families with children: this is as much a park as a museum. A path through lawns, wooded areas, and gardens meanders past large-scale sculptures by famous Japanese and Western artists (a lot of Henry Moore). The most interesting things in an indoor Picasso gallery are his ink drawings of bulls. Check the schedule for special events, like night-time light displays, and temporary exhibitions from the likes of Yayoi Kusama. You can walk the park in about 90 minutes, but you may want more time to picnic, play, and rest at the hot spring-fed foot bath." - Brandon Presser