Riverine warfare

[Nathan Ross]

I plan on returning to Germany next year and this is on my list. 

Good plan. Mainz has three great Roman/ancient museums (as I recall), and it's close to many more - Trier, Koln, Xanten.

The Schifffffmuseum had an annying no-photos policy when I visited (in 2015), but I managed to sneak a few anyway before the guards caught me - and I've seen so many other pictures online that were clearly taken by visitors that the policy must be either temporary or only enforced sporadically!

I like your photo that accompanies your post, but don't you have any in color? ;-).

 
The profile pic, you mean? It's from a statue of C Caelius Saturninus, alias Dogmatius. Not a very colourful guy!