Ward K.
Yelp
Akihabara used to be known as Japan's electronic district and still is, but in more recent times, it has expanded into a place where you can find things like all things Manga, anime, Pokémon stuff, video games and yes, even maid cafés.
Akihabara is a neighborhood in the Chiyoda ward of Tokyo, Japan. It is in walking distance of Ueno. If you don't know about Ueno, you should ask someone or maybe don't as it is getting crowded with tourists.
If you end up going at night, I would suggest going on a Friday or Saturday as you might catch a glimpse of some of the sports cars taking to the streets and see the anime culture come alive.
There are tons of small stores to check out but if you want 10 floors of things to look at from trading cards, video games, figurines, etc then I would suggest you head to Radio Kailan, which some consider the best toy complex on the world. Yodobashi Multimedia Akiba is another place I would recommend to check out.
Overall, Akihabara has a lot to offer for those who are interested in these things and want to run away from the traditional temples, shrines but want to soak in this type of atmosphere.