The Naniwa-no-Miya Palace Ruins are situated directly across from Osaka Castle Park, which itself contains places like Osaka Museum of History and NHK Osaka Broadcasting Station. The site of Japan's former capital, Naniwanomiya, the ancient palace was located in the area of Naniwa during the Asuka and Nara periods. During the second world war, the Japanese imperial army occupied the entire area, after which it was examined for the first time. Due to the finding of an ornamental tile nearby in 1953, a formal excavation was then conducted. Currently, an area of about 90,000 square meters has been designated a historical landmark of the nation. This was the central part of the palace. From the nearby Osaka Museum of History, underground ruins can be seen on the basement floor and in front of the museum is a cypress bark thatched storehouse with raised flooring. This is just one that has been restored out of the large collection that used to exist during the Tumulus Period. Also located in the northern central area of the park is the restored council hall that was used by the emperor for official events. It has a view of Osaka Castle as well.