Zoom in to see all the locations!
The blue route simply marks his terrestrial travel from his home to the first major location, Rome (Ruma).
The orange route marks the rest of his plausible route.
The red route indicates places that he likely did not travel.
When a location is followed by one or more question marks that just indicates that it either wasn’t on the Tabula Rogeriana or that I just didn’t find it. China and the Sea of Nikpo have several question marks because……. I truly just can’t figure out what he thought was going on in that corner of the world.