Day26-139 文京区千石一丁目　Sengoku 1-chome, Bunkyo City

山手線内100日完全踏破 EveryStreetChallenge inside the Yamanote Line, Tokyo 100日で、山手線内501町丁の歩ける道をすべて歩く。 Walking every accessible road across all 501 towns inside Tokyo's iconic loop railway. https://everystreetchallenge.jp/