Building the Ancient City: Rome

剧情：

Rome, 2000 years ago was the world's first ancient megacity. In a world where few towns had more than ten thousand inhabitants, more than a million people lived in Rome. How did they manage without all the technologies of our modern cities? How did they bring in enough food to sustain the population? How did they house them? How did they maintain law and order? How did they make this city work?