锡耶纳大教堂或锡耶纳主教座堂，托斯卡纳，意大利

n church or Duomo of Siena is one of Italy's most stunning Romanesque and Gothic cathedrals. Built as a medieval church it was dedicated from its earliest days as a Roman Catholic Marian church, and is now dedicated to the Assumption of Mary. Hence, it is also known as the Cathedral of Santa Maria Assunta. The cathedral was designed and completed between 1215 and 1263 and the distinctive black and white marble stripes on the walls and columns represent the colours of the civic coat of arms of Siena - and the horizontal molding around the nave and the presbytery contains 172 plaster busts of popes dating from the 15th and 16th centuries starting with St. Peter and ending with Lucius III, while the spandrels of the round arches below this cornice exhibit the busts of 36 emperors. Some of the finest Italian artists of the era completed works in the cathedral, including Nicola and Giovanni Pisano, Donatello, Pinturicchio, Lorenzo Ghiberti, and Bernini.