Here's the map of the area around the Forum Romanum in Rome, around 66-69 AD. It covers many of the places mentioned in the course of the novel. For this map, we took an existing one in the public domain and overhauled it completely. The Fish Market and the Produce Market are taken from Colleen McCullough, and the 100 Steps are taken from another map entirely (I'm glad I was able to find that map, as I thought I had made them up during the writing!). Most of the other buildings are fairly well established.
Getting close now, kids!