Oh btw, in the square where the Neptune statue is, there's a spot where you can look at it and the prospective makes the thumb of the left hand look like a big penis... I think you can do that in the game too!! :-)
There may be a Fountain of Neptune in Florence, but the game begins in 1476, and according to the Wikipedia article, the fountain wasn't commissioned until almost 90 years later:
This work by Bartolomeo Ammannati (1563–1565) and some assistants, such as Giambologna, was commissioned on the occasion of the wedding of Francesco I de' Medici with grand duchess Johanna of Austria in 1565.
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