Piazza del Popolo is one of the most popular places for anyone to visit in Rome. Piazza del Popolo is a large urban square in Rome. Historically it derives from the poplars as populus in Latin, pioppo in Italian after which the church of Santa Maria del Popolo takes its name. For centuries, the Piazza del Popolo was a place for public executions, the last of which took place in 1826. Opposite Santa Maria del Popolo stands a Carabinieri station, with a dome reflecting that of the church.Fontana del Nettuno.