The Janiculum, considered the eighth hill of Rome, is a panoramic terrace offering one of the most evocative views of the city.
The Janiculum became very popular for its important historical role as the scene of the battle in which Garibaldi opposed the French troops in the heroic defense of the short-lived Roman Republic.

The Passeggiata del Gianicolo consists of two large avenues lined with plane trees, which run alongside Villa Aurelia and meet in Piazzale Garibaldi. Along the avenues are 84 busts of illustrious Garibaldi soldiers who fought to defend Rome in 1849. At the highest point of the hill, the equestrian statues of Giuseppe Garibaldi (by Emilio Gallori, inaugurated in 1895) and Anita Garibaldi (by Mario Rutelli in 1932, in collaboration with his student Silvestre Cuffaro) were later placed. Her remains were placed in the base of the statues.

At the northern end of the hill is the Janiculum Lighthouse, which serves as a commemorative national monument. It was erected thanks to the initiative of a committee of Italians living in Buenos Aires to celebrate the 50th anniversary of Italian Unification and to demonstrate their ties to their homeland. At the southern end of the hill is Porta San Pancrazio, a witness to the events of the Roman Republic of 1849 and today home to the Museum of the Roman Republic and Garibaldi's memory.

Since 1904, a cannon shot has been fired every day at 12:00 p.m. under the Janiculum Belvedere. This tradition was introduced by Pius IX in 1847 to provide a reference to the bells of Rome's churches, so that they would all ring at the same time.