Tokyo is the capital of Japan and the largest metropolitan area in the world. It is divided into 23 districts with a total population exceeding 13 million people. Some of the most popular districts include Shinjuku, known for its neon lights and bustling streets; Shibuya, a trendsetting district with large shopping centers; and Asakusa, home to the historic Sensoji Temple. Other attractions in Tokyo include the Metropolitan Government Building, Tsukiji Market which is the world's largest fish market, Ueno Park known for its cherry blossoms, and museums such as the Tokyo National Museum and Edo-Tokyo Museum.