Japan has a tradition of shooting off fireworks in the summertime at events called 花火大会 (hanabi taikai). There is pretty much one every day somewhere in Japan for the whole summer. A few of the shows can involve over 100,000 fireworks. This page has a listing of all the 花火大会 in 2010. The first fireworks show that I went to this summer was the 江戸川区花火大会 (edogawa-ku hanabi taikai), the show put on by the Tokyo ward Edogawa yesterday.