Shibuya - a hub in Tokyo where the following lines branch out of the main station - Yamanote Line, Saikyō Line, Shōnan-Shinjuku Line, Tōyoko Line, Tōkyū Den-en-toshi Line, Tokyo Metro Hanzōmon Line, Tokyo Metro Fukutoshin Line, Ginza Line and the Inokashira Line.
Anybody visiting Tokyo should make some time to drop by Shibuya. Streets are filled to the brim with fashion stores, restaurants and there are quite a few electrical outlets here too including Bic Camera, Yamada Denki Labi and the Apple Store.
Other stores of interest would be Tokyu Hands (Zakka) and Mandarake (Manga, Doujin and rare figures, dolls).