Florence at this time of year is a great shout, nice low end of winter sun gives the place a lovely atmosphere, early morning haze over the Duomo – fantastic – and no queues like there are in summer.
We went in February last time, hotel we wanted to stay in told us they were closed for spring decorating, but had an apartment we could have. It was an old converted bell tower, shuttered windows on all 4 sides and stunning views across the terracotta topped city. Was a s cheap as chips as well.