Multiple choice general knowledge math & puzzles Which city is not on Honshu island? Kyoto Sapporo Kobe Hiroshima Reveal answer Fill a bubble to check yourself B Correct answer Explanation Sapporo is the largest city on Hokkaido, the northernmost of Japan's four main islands. Kyoto, Kobe, and Hiroshima are all located on Honshu, which is the largest and most populous island of Japan.