The Osaka Castle built by Toyotomi Hideyoshi, the currently completed Hosomaru and Ninomaru were built at a ratio of 1:1 (1 block = 1 meter).

Unfortunately, because this is a single-person building, due to the heavy workload, there is not much interior decoration for the time being, and the details will continue to be refined in the future.

In this video, some sights of the castle are shown: www.bilibili.com/video/BV1EL411k7o7/

Have a nice day!