Photo taken on May 3, 2011 shows the historic center in Florence, central Italy. Florence is the capital city of the Italian region of Tuscany and the symbol of the Renaissance. UNESCO inscribed the historic center of Florence in the World Heritage List in 1982. [Xinhua/Wang Qingqin]

Tourists are seen on the dome of the Cathedral of Santa Maria del Fiore at the historic center in Florence, central Italy, May 4, 2011. Florence is the capital city of the Italian region of Tuscany and the symbol of the Renaissance. UNESCO inscribed the historic center of Florence in the World Heritage List in 1982. [Xinhua/Wang Qingqin]