Comiket is the worlds biggest anime convention. It is different from cons in the West though, because comiket was originally established as a market place for comics (hence the name Comic Market) as apposed to western cons which are more to celebrate the love for anime and manga. These days comiket held at the Tokyo Big Sight exhibition center, a huge building close to Odaiba, and around 500,000 people visit each day during the 3 day period in summer and winter.