There are at least three statues of David in Florence, if my memory holds. One outside the Palazzo Vecchio, one up on a hill across the river and, of course, the original in the museum (as beautiful as you describe). There’s more art in that city than you can shake a paintbrush at...
In ancient Athens there were statues called herms which usually had phalluses...out in public for anyone to see them. On the island of Delos there were gigantic statues of phalluses (now damaged). But of course the ancient Greeks were not like us.
The original is in the Academy.