In Western Tokyo, one of the few buildings in Tokyo that bears the scars of World War II is the Hitachi Aircraft substation near Tamagawa-Jōsui Station 玉川上水駅.
The building shows bullet marks from when it was strafed by American gunfire during the war (it was attacked three times in 1945: February 2, April 19, and April 24.
See: Tokyo’s archaeology of World War II 東京の第二次世界大戦の考古学 (WW2 sites)