In all three Italian cities we've been, there is a mixture of tarred roads, and then more cobbled type roads. In Firenze there is a lot more of the cobbled type roads. We took a walk over one of the bridges to the other side of the river, and after about 2 or 3 minutes found a street that was winding upwards at a good 7 - 11 degree gradient, all cobbled, and very wet as it was raining. Of course my beautiful smile and batting of eyelashes convinced Leon that it is a good idea to see how far we can get to the top. My only thought while climbing up this road was - imagine how hard it must be to cycle up here in wet weather. The cobbles are pretty slippery, and a lot of the climbing would require standing on a bicycle... Some of the little side roads we took are so narrow that I think a smart car would barely fit through. Even crazier than this is that if you lived in the houses next to these streets, your front door opens directly onto the street, there isn't even a pavement!
We didn't walk all the way to the top since the cold and the rain eventually changed our minds, but even from where we got to we could look out over the whole of Firenze. Must be beautiful on a clear sunny day!