Laid out in the late 19th century as the centrepiece of an upmarket residential district, but today with a rundown, seedy feel, Rome’s biggest square is a grassy expanse, surrounded by speeding traffic, porticoes and bargain stores. Within the fenced-off central section are the ruins of Trofei di Mario , once a fountain at the end of an aqueduct.
In the northern corner, the Chiesa di Sant’Eusebio is popular with pet-owners who bring their companions to be blessed on St Anthony’s feast day (17 January).