Padua is a city and comune in the Veneto, northern Italy. It is the capital of the province of Padua and the economic and communications hub of the area. Padua's population is 214,000 (as of 2011). The city is sometimes included, with Venice and Treviso, in the Padua-Treviso-Venice Metropolitan Area, having a population of c. 1,600,000.
The Scrovegni Chapel is Padua's most famous sight. It houses a remarkable cycle of frescoes completed in 1305 by Giotto.It was commissioned by Enrico degli Scrovegni, a wealthy banker, as a private chapel once attached to his family's palazzo. It is also called the "Arena Chapel" because it stands on the site of a Roman-era arena. The fresco cycle details the life of the Virgin Mary and has been acknowledged by many to be one of the most important fresco cycles in the world. Entrance to the chapel is an elaborate ordeal, as it involves spending 15 minutes prior to entrance in a climate-controlled, airlocked vault, used to stabilize the temperature between the outside world and the inside of the chapel. This is to improve preservation.The Palazzo della Ragione, with its great hall on the upper floor, is reputed to have the largest roof unsupported by columns in Europe; the hall is nearly rectangular, its length 81.5 m (267.39 ft), its breadth 27 m (88.58 ft), and its height 24 m (78.74 ft); the walls are covered with allegorical frescoes; the building stands upon arches, and the upper storey is surrounded by an open loggia, not unlike that which surrounds the basilica of Vicenza. The Palazzo was begun in 1172 and finished in 1219. In 1306, Fra Giovanni, an Augustinian friar, covered the whole with one roof. Originally there were three roofs, spanning the three chambers into which the hall was at first divided; the internal partition walls remained till the fire of 1420, when the Venetian architects who undertook the restoration removed them, throwing all three spaces into one and forming the present great hall, the Salone. The new space was refrescoed by Nicolo' Miretto and Stefano da Ferrara, working from 1425 to 1440. Beneath the great hall, there is a centuries-old market.