In Hiraizumi, remains in Motsu-ji Temple that second generation Motohira had built, and the site of Kanjizai-oin that the wife of Motohira had built, has been preserved.
平泉には他に、2代基衡の建てた毛越寺境内遺跡、基衡の妻の建てた観自在王院跡などが遺跡としてのこっている。