The route followed by Ryan as he stalked Bishop Giammo; the blue star shows the location where Ryan and Emily first met. (Click thumbnails to enlarge).

A map showing Rome during the time of Augustus; the Pantheon can clearly be seen, highlighted in blue. (Click to enlarge).

 

The route followed by Ryan and Emily in their journey through the ancient catacombs in their bid to recover the aureus. From Jesuit Headquarters in Borgo Santo Spirito their route follows a subterranean mahogany-lined corridor.
(Click thumbnails to enlarge).