- Zebra church: basalt and travertine stones
Orvieto. - Procuratie Vecchie
The facade is made of Istrian limestone. - Procuratie Vecchie
Built in the beginning of the 16th century. - Pozzo di San Patrizio
There are 70 windows in the well. - Giotto's Campanile
Giotto stared building this tower in 1334. He combined white marble from Carrara, green marble from Prato, and red marble from Siena. The tower was completed in 1359.