Published on Friday, August 17, 2012 by Kathy McCabe If you're visiting Siena in August, September or October 2012, don't miss the rare chance to see the famous floor mosaics,  at Siena's cathedral or Duomo. Giorgio Vasari called the floor of Siena’s Duomo “the most beautiful, big and magnificent that has ever been done.” The mosaics, dating from the 14th to 16th centuries, are normally covered by carpet to pro...