Sanada-shi Yakata
Sanada-shi Yakata was considered unsuitable for withstanding a siege and Sanada clan had such castles as "Sanada-shi Honjō Castle" and "Tenpaku Castle" near the residence. Its ruins have been protected as a Prefectural Historic Sites. The residence is now only ruins, with some stone walls, moats, and earthworks. Kōtai Shrine which was built by Sanada Masayuki when Sanada clan left the residence is on site. Sanada clan Historical Museum is adjacent to the site.