Koko-en Garden (好古園 Kōko-en) (sometimes called Himeji Kōko-en) is a Japanese garden located next to Himeji Castle in Hyōgo Prefecture, Japan.[1] It was constructed in 1992 at the site of the lord’s west residence, to commemorate the 100th anniversary of the establishment of the Himeji municipality. The garden is about 3.5 hectares and has nine different gardens.[2] In 2017, Koko-en signed a sister garden agreement [3] with Ro Ho En, the Japanese Friendship Garden, in its sister city, Phoenix, Arizona.

(Ref: https://en.m.wikipedia.org/wiki/Koko-en_Garden)

Absolutely beautiful collection of gardens. A must see when in the Himeji area.