Take a tour of Siena Duomo in Italy part of the Worlds Greatest Attractions travel video series by GeoBeats. Overlooking the Italian town of Siena, a cathedral delights visitors with its art and history. The Siena Cathedral was built in the thirteenth century and it is covered in art. Everywhere you look is an art lovers dream accompanied by a history lesson. Masterful architects added on to the Cathedral throughout the middle ages and Renaissance.