The three towering civilizations of the Mayas, Aztecs, & Incas dominated ancient Central & South America. The Mayas were one of the world's most advanced civilizations; the Aztecs conducted extensive religious rituals involving human sacrifices; & the Incas were one of the great ancient engineering civilizations of antiquity. This book summarizes the main features of what is known about these peoples -- their social structures, buildings, art, religions, & their knowledge of science -- & broadens our understanding of the diversity of human history..