Nagaya-mon here meaning “gate-house” stands on the Horagusa-Daichi (plateau) looking down the suburbs of Miyoshi City and also Yoshino river. It was built about 230 years ago. The gate-house 22 meters wide (from east to west) by 4.5 meters long has the thatched roof, white-washed wall. It has stockroom, watch room, guard room, bedroom and barn. The expansive gate-house signified the great power which those village officials held in the era of feudal clan ruling.