Architecture of Rome huge and majestic Baroque squares (often adorned with obelisks), many of which were built in the 17th century. The principal squares are Piazza Navona, Piazza di Spagna, Campo de' Fiori, Piazza Venezia, Piazza Farnese and Piazza della Minerva. One of the most emblematic examples of Baroque art is the Fontana di Trevi by Nicola Salvi. Notable 17th-century baroque palaces are the Palazzo Madama, now the seat of the Italian Senate and the Palazzo Montecitorio, now the seat of the Chamber of Deputies of Italy. In 1870, Rome became the capital city of the new Kingdom of Italy. During this time,
Piazza Mercanti Piazza Mercanti Piazza Mercanti ("Merchants Square") is a central city square of Milan, Italy. It is located between Piazza del Duomo, which marks the centre of the modern city of Milan, and Piazza Cordusio, and it used to be the heart of the city in the Middle Ages. At the time, the square was larger than it is now (as part of it has later become what is now Via Mercanti, the street located between Palazzo dei Giureconsulti and Palazzo della Ragione) and known as "Piazza del Broletto", after the "Broletto Nuovo", the palace that occupied the centre of the