text: Our itineraries divide the city 's heart into four from the Duomo north to Piazza San Marco ; from the Piazza della Signoria , its Palazzo Vecchio and the Uffizi Galleries east to Piazza Santa Croce ; from the Mercato Nuovo west to Piazza Santa Maria Novella ; and the southern Left Bank of the Arno River around the Pitti Palace and the Piazzale Michelangelo .
  
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  The city 's heart can be divided into four parts for the purposes of fulfilling our itinerary .