How many times has the Osaka castle rebuilt?

Osaka Castle has been rebuilt multiple times throughout its history. Originally completed in 1583, it has undergone significant reconstructions after being damaged or destroyed, notably during the Siege of Osaka in the early 17th century and again during World War II. The current structure, which was completed in 1931, is a modern reconstruction that retains the historical design elements of the original castle. Overall, it has been rebuilt several times, reflecting its enduring significance in Japanese history.