Akihabara is not only otaku mecca in Japan. Otaroad (meaning "Road of Otaku") in the Nippombashi district, Osaka-city, has been known as Osaka's equivalent of Akihabara in a little smaller scale. Just like Akihabara, the street was one of the major electrical shop towns in Japan, but it is now filled with otaku-centered shops including ostentatious maid cafes.
One of the shops in the area Geestore Osaka Annex is now holding a special exhibition featuring the TV anime series Tari Tari, which has just finished its run in Japan last week. You can see a lot of production materials including character design sheets, story boards, and key animations from the series.