Mizuto: Lots of beautiful temples, traditional architecture, ride on wheel pulled by man, Kimono.
Mizuto: Great temple, lots traditional suvenior shop, most travelers visit here. It's 20 min from TwitterJP office by subway.
Mizuto: From Ueno station to next station, lots of shop are located which selling, Fresh seafoods, meat, snacks, suveniors, etc. Narrow road but various shop will attract many tourists.