These people are walking towards the Ote-mon Gate to visit the East Gardens of the Imperial Palace. Admission is free but controlled to prevent overcrowding. In 1968, three sections of the former Edo Castle were converted into 52 acres of greenspace. There are several sites worth visiting. The Museum of the Imperial Collections (Sannomaru Shozokan) showcases artwork belonging to the Imperial Family. Toukagaku-do is a music hall and Shoryobu manages archives. You will also see the ruins of the castle tower (Tenshudai Donjon) built in 1638. And among the moats and stone walls are sculpted trees, a water lily pond and, of course, traditional Japanese gardens.
