Engineering An Empire initiates its architectural investigation with mighty Greece, the Empire that gave rise to western civilization and produced some of antiquity's greatest treasures. Next, discover how Alexander saved the Greek Empire from its period of civil unrest, then voyage to Central America to unlock the mysterious and magical world of the ancient Aztecs. * GREECE: The cradle of Western civilization sustained remarkable technological advancement for over 1,000 years, including such masterpieces as the Tunnel of Samos and the Parthenon. * GREECE: AGE OF ALEXANDER: After a century of tremendous accomplishment, Greece's territorial ambitions were stymied by constant warfare - until Alexander ventured abroad and initiated the Hellenistic era. * THE AZTECS: The Aztecs became one of the greatest civilizations in history through brilliant military campaigns and technological mastery of their harsh environment.