The city lies on the River Arno, and It is known for its history and its importance in the Middle Ages and the Renaissance, especially for its art and archetecture.
A nice poem you could use is called "The Road Not Taken".
The poet (Robert Frost) uses a lot of similes and metaphors in this piece of work. Or, at the very least, a lot of metaphors.
You should check out the poem and see for yourself, it's available online to read for free.