I must not have been paying attention, but I just found out that while the euro bills are the same throughout the Eurozone the euro coins have one side that is the same and the other side that is individualized by country.
The Italians have the coolest national figure. They chose Leonardo's Vitruvian man, as you can see on the left. To find out more about this, read this bilingual article here.
To see pictures of the various national euro coins, go to this site.