This would also entail moving out existing modern structures on the grounds. The castle complex is made up of five enceintes divided by an outer ("Soto-bori") and inner moat ("Uchi-bori"). Each enceinte is protected by walls with turrets strategically located at each corner. Access from one enceinte to the next was controlled by guarded gates that were accessible by bridges. The castle is a good example of the type built on flat land. The Honmaru enceinte is in the centre of the complex, containing the main and minor keep, along with the palace. The Ninomaru enceinte is located to the east, the Nishinomaru to the west, the Ofukemaru, also known as the Fukaimaru, to the northwest, and the Sannomaru around the east and south. Today's Meijō Park was part of the larger castle's grounds to the north; it was originally used as pleasure gardens containing a large pond. The larger Sannomaru enceinte used to be buffered by two moats and encircled the inner castle enceintes from the east and the south. Various temples and villas, as well as administrative buildings, were located on its grounds. On the eastern side, the large stone foundations of the Sannomaru East Gate are still visible. Located in the Sannomaru enceinte were the Tōshō-gū shrine and the Tennosha shrine, which housed the guardian deity of the castle. Both shrines played an important role in the religious life of the castle, and rituals and festivals were held in honour of the spirits enshrined. Both shrines were moved in the late 19th century during the Meiji era. None of the other original wooden structures of the Sannomaru have survived, but the area is still the administrative center of the city of Nagoya and the surrounding Aichi Prefecture, with Nagoya City Hall, the Aichi Prefectural Government Office, and other administrative buildings and offices being located there. Roads and areas such as Sotobori-dori (Outer Moat Road) and Marunouchi begin at the castle. The "Nishinomaru Enokida" Gate (西之丸 榎多門 "Nishinomaru enokidamon") is used today as the main entrance (正門 "seimon") to the castle.