Let's take a break from Roman history and see what's happening in the Western Hemisphere. Ana from the History of Small Things takes us to her hometown of Mexico City to talk about ancient Mexican history.  The standout wonders this episode are the great pyramids of Teotihuacan, started in 100 CE in a city which rivaled Rome in size and artistry. But that's just the start. We talk about the first Americans, the earliest Mexican civilizations, and stories of human sacrifice, wars, and mayhem.  Mexico City is one of the world's great cities, and we talk about two of its most magnificent sights: the National Anthropology Museum and the Zocalo.  Plus street food, tacos, tamales, and huaraches.