The thatched-roof stilt warehouse in front of that museum is a replica of one of the massive stilt warehouses existed in the fifth century (Kofun period [Tumulus period]) that were found in the Hoenzaka Site.
同博物館前にある茅葺きの高床倉庫は、法円坂遺跡で見つかった5世紀（古墳時代）の巨大高床倉庫群のうち1棟を復元したもの。