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,
Sant'Agnese in Agone set one urban block away from the piazza, to the Piazza Navona, a large urban space that Innocent was transforming into a showcase associated with his family. It had been the intention to build the new church over the old church which would become the crypt; this meant the new church was to be raised well above piazza level, but this idea was abandoned once construction started. The original drawings are lost but it is thought that the Piazza Navona facade design included a narthex between two towers and broad stairs descending to the piazza. Harsh criticism was made of