However , the grounds were more extensive during the Edo period , with Tokyo Station and the Marunouchi section of the city lying within the outermost moat .
Some moats , walls and ramparts of the castle survive to this day .
The grounds were more extensive during the Edo period , with Tokyo Station and the Marunouchi section of the city lying within the outermost moat .
Some moats , walls and ramparts of the castle survive to this day .