The existing Tamon Turret of Osaka Castle is the largest of its kind amongst all such castles in Japan. Although the present Tamon Turret was built in 1628, it burnt to the ground due to lightning in 1783 and was reconstructed in 1848. The turret, which was renovated after it had been pulled down in 1956, and now stands as it had been originally. Kurogane Gate of the turret is referred to as O-mon (the Great Gate) of Ote.