Duomo di Orvieto, a 14th century cathedral built in the Siennese Gothic style. In contrast to the ornate golden facade, the side walls are constructed of alternating white travertine and blue-grey basalt stone. #trekarooing #familytrip #familytravel #travelwithkids #takeyourkidseverywhere #orvieto #orvietoitaly #italy #italia