I've loved this piece for as long as I can remember, and walking by the Arno, listening to it being played on one of my favourite instruments filled me with such joy. I love the Italian version of the song, (everything sounds more romantic in a foreign language) which tells the story of a young woman pleading with her father that she loves a certain young man he has conflict with. In the piece, she sings "if my love were in vain, I would go to the Ponte Vecchio, and throw myself in the Arno!"
Below is the beautiful piece played on the violin by the amazing musician, Joshua Bell. If you listen, you might recognize the tune as it's quite famous, and you might understand why I love it so much. :)