https://en.wikipedia.org/wiki/Lazio
WebThe capital of Lazio is Rome, which is also the capital and largest city of Italy. Geography. Relief map of Lazio ... a vast alluvial plain surrounding the city of Rome, with an area of approximately 2,100 km 2 ... Metropolitan City of Rome Capital: 5,352 4,097,085 765.5 Province of Viterbo: 3,612 314,690 87.1