Too much? One of these you've already seen. [Here, I mean. You may have seen all of them in Venice.] Did someone pass a law that said that every iron bridge in Venice had to be different? Actually, there are a couple or three that I think may be the same, but I could be wrong. It's quite hard to compare them side-by-side. I have more of these photos, as I'm sure you do too, but five is enough to be going on with. For a bonus point, explain the title.