River straddled by Florence

• It flows through 55-Across
• The Piazzale Michelangelo affords a view of it
• River that runs by the Uffizi
• Florence flower?
• Flower under the Ponte Vecchio
• The Ponte Santa Trinita spans it
• Arezzo's river
• Florence's river

Wikipedia Word definitions in Wikipedia
Arnö is a locality situated in Nyköping Municipality , Södermanland County , Sweden with 3,871 inhabitants in 2010.