This location just marks a central place in the village, but there is nothing particularly interesting right at this point on the map. It is best to check the specific locations of the museum and nurseries for their opening hours.
However, Omiya is a beautiful area, with several Bonsai nurseries where you can go for a walk, enjoy the bonsai on display and buy some trees, pots or tools. If you are a bonsai enthusiast, this is a must-see, and if not, it is still highly recommended to spend a morning enjoying something so typically Japanese.