A 9-floor shopping complex, floors 1-6 of which are occupied by Yodobashi Camera—the biggest consumer electronics store in Japan (and maybe the world). There is a tax-free counter and English speaking staff are on hand. Heaven for gadget-lovers.
1 minute from the Central Exit of JR Akihabara Station. Turn left out of the ticket gates and the entrance will be across the road
9:30-22:00, seven days a week