Osaka Castle, located in Chūō-ku, Osaka, is a historic monument that stands as a testament to Japan's rich feudal history. Constructed in 1583 by Toyotomi Hideyoshi, it played a pivotal role in the unification of Japan during the Azuchi-Momoyama period. The castle's architecture features a unique design with a five-story exterior and an eight-story interior, built on two raised platforms supported by walls of cut rock, a technique known as burdock piling. Surrounded by moats and defensive fortifications, Osaka Castle is not only a symbol of the past but also a popular attraction, drawing millions of visitors each year to admire its beauty and historical significance.