Imperial Palace East Gardens is made up of the Honmaru and Ninomaru areas of Edo Castle. None of the Edo Castle buildings remain today, though the moats, walls, gates and guardhouses still exist. Honmaru is the most spacious area of the garden and visitors can view cherry trees, roses, bamboo and a tea garden. Ninomaru Garden is planted with 260 trees donated by each prefecture of Japan surrounding a pond. In 1963 the garden was declared by the Japanese government a "Special Historic Relic" under Cultural Properties Protection.