Akihabara

Akihabara is best known as one of the largest shopping areas on Earth for electronic, computer, anime, and otaku goods, including new and used items. New items are mostly found on the main street, with used items of all descriptions (software, hardware, and junk galore) to be found in the back streets of Soto Kanda 3 Chome (area). New parts for the do-it-yourself PC builder are readily available, with many places around for bargain hunters. Tools, electrical parts, wiring, micro-sized cameras, and more are found in the cramped passageways of Soto Kanda 1 Chome (near the station).  Many items are not found elsewhere, as this town sort of serves as a "consumer test bed," before releasing items to the rest of the world!

The girls actually turn out to be Japanese Superheroes in Akihabara!

[These are actually Neon Genesis Evangelion (新世紀エヴァンゲリオン) anime superheroes.]