Janiculum Hill (Gianicolo)

The highest hill in central Rome (though not one of the original Seven), running along Trastevere's western edge and offering some of the city's best free panoramas. The hilltop is dotted with monuments to Garibaldi and the heroes of the 1849 Roman Republic — including a dramatic equestrian statue of Garibaldi himself and a memorial to his Brazilian wife Anita. A cannon has been fired from the hill at exactly noon every day since 1847, originally to synchronise the city's church bells.