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 della Repubblica, Florence did not diminish, however, particularly in the first years of the twentieth century, when the cafes facing onto the piazza became a meeting-place for artists and men of letters. Piazza della Repubblica, Florence Piazza della Repubblica (, "Republic Square") is a city square in Florence, Italy. It is on the site, first of the city's forum and then of the city's old ghetto, which was swept away during the city improvement works or "Risanamento" initiated during the brief period when Florence was the capital of a reunited Italy, work that also created the city's avenues and boulevards. The ghetto has