Hirosawa Museum is a private art museum in Ibaraki Prefecture. The architecture was designed by world-famous architect Kengo Kuma and the Japanese garden that occupies most of the site was designed by modern gardeners Chuichi Saito and Shunsaku Miyagi. Chuichi Saito, who studied under Mirei Shigemori described it as a “museum where stones play a leading role”. Hirosawa City, where this museum is located, is actually a “comprehensive leisure facility" that embraces the themes of nature, health and culture with museums, rail parks, farms, lodges, art cafes, studios, and a Museum of Stone across the road from the museum. The museum itself exhibits art by Japanese painters Itaya Hazan, Taikan Yokoyama, Ryuzaburo Umehara, Leonard Fujita and works by Western painters such as Georges Rouault and Bernard Buffet.
Surrounding the delta shaped museum - that looks like a back sword when viewed from the air - are the gardens which are first and foremost the main attractions. The front garden is called Shijima no Niwa and the back garden is called Homura no Niwa, which mainly consists of stones and sculptures both designed by Miyagi Shunsaku. The main garden Kiyora no Niwa is Saito Chuichi's creation. All three gardens, as an ensemble are called "Tsukuha no Niwa".