The city of Tokyo is the largest and most densely populated in the world, and merits several days’ exploration. A popular visit for first-time travellers is the Asakusa Kannon temple, the largest Buddhist temple in Tokyo that enshrines a golden image of Kannon, the Goddess of Mercy. The present temple dates from 1950 and is a popular meeting place on holidays and weekends, and is located adjacent to Nakamise-dori shopping street. The Imperial East garden is the only part of the Imperial Palace complex that is open to the public. Entry is through the Ote-mon gate, which was at one time the principal gate of the city of Edo, the former name of Tokyo. The garden lies at what was the heart of the old Edo castle. The Tokyo National Museum could take up a day on its own, with extensive displays of historic costumes including samurai armour and swords and fine kimonos, antique folding screens, tea ceremony utensils and Japanese paintings.