Aqua Anio Novus
W, designated as Ductus Iuliae, the side branche of the Anio Novus or the Aqua Julia called Ramus Aquae Juliae to the Nymphaeum Alexandri ("Trophies of Marius") at the present Piazza Vittorio Emanuele II (W) coming from the Porta Tiburtina region (N). (R. Lanciani: Forma Urbis Roma 24 Esquilinus)