florence, italy is one the most influential places of ART (architecture, fashion, religion, science, etc)! it was proclaimed as being "the art capitol of italy". In the Renaissance era artists from all over flocked to Florence to just getta whiff of the creative air and to be found, recognized, inspired, loved, and successful! And the great art matrons, The Medici, family lived there.
I really wanna go to the, Uffizi Art Mueseum (one of the most famous and important art galleries in the world) which contains art from Botticelli, Leonardo da Vinci, Michelangelo, Donatello, etc.
and of course not only for the art.. there's famous palaces, parks, piazzas, theatres, etc.... it's lika lifetimes worth of sightseeing!