If you're eager to add a little more culture to your escape, put Museum of Natural Sciences on your list. Check for guided tours or just look around at your own speed.
You'll soon learn why this Coração Eucarístico museum is a hit with travelers. If you're looking for more to do and see here, Mineirão Stadium, Liberty Square, and Church of Saint Francis of Assisi are in the area as well. They won't take you very long to reach from Museum of Natural Sciences.