Coordinates: 41°53′45.35″N 12°29′11.90″E / 41.8959306°N 12.4866389°E
The Torre delle Milizie ("Tower of the Militia") is a fortified tower in Rome, Italy, located between the Trajan's Market in the Imperial fora to the east and the Pontifical University of Saint Thomas Aquinas, Angelicum to the west.
It gained the popular nickname of "Nero's Tower" from a tradition that it originated as an ancient Roman construction from which Emperor Nero watched the Great Fire of Rome – this is derived from the classical account that he watched from a tower in the Gardens of Maecenas, though more trustworthy accounts place him out of town, at Antium at the time.
The actual construction of the tower probably dates to the time of Pope Innocent III (1198–1216) under the Aretino family. At the end of the 13th century, the tower was a possession of the powerful Annibaldi family, who were followed by the Prefetti di Vico and by the Caetani, Pope Boniface VIII's family. Under the Caetani the fortified quarter was enlarged and strengthened, probably rivalling with Castel Sant'Angelo as Rome's main fortress.