June 6, 2012: Italy, Veneto, Cittadella . Cittadella is a medieval walled city in the province of Padua, founded in the 13th century as a military outpost of Padua. The surrounding wall has been restored and is 1,461 metres in circumference with a diameter of around 450 metres. View of the City Walls with Porta Vicenza (or Porta Vicentina), one of the four gates of the city [ + ] [ - ]

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