What two areas in the solar system are mainly populated by asteroids?

The two locations in the solar system where most asteroids hang out are the Asteroid Belt (what a surprise!) between the orbits of Mars and Jupiter, and the Kuiper belt, which lies outside the orbit of the outer planets of the solar system. The locations are probably best understood by looking at pictorial presentations, and the really interested person would find them on the sites located in the related links, below.