Judith Jones travels south to the lands of ancient empires. In Mexico, she explores the myths and treasures that once drew the Conquistadors to a country rich in natural resources. Following their trail, her first stop is colonial Chihuahua, where Pancho Villa started the Mexican Revolution. In Zacatecas, she visits one of Mexico's many Silver Mines and then travels along the colonial Silver Road to Mexico City, from where the Aztecs once ruled their bloodthirsty empire.