How did a muddy settlement on the banks of the river Tiber grow into the greatest empire the world had ever seen? Who was the more diabolical: Caligula or Nero? And was there really such a thing as Pax Romana? Speaking with Spencer Mizen, Edward Watts answers some of the most intriguing questions about this extraordinary culture – and considers just how Rome rose to dominate the ancient world. Learn more about your ad choices. Visit podcastchoices.com/adchoices