Forum of Trajan
Lying alongside Via dei Fori Imperiali are the ruins of this forum begun by Trajan in 112. Construction was an ambitious project; part of the Quirinal Hill nearest the Capitol was removed, requiring the excavation of some 30m of soil. The forum is composed of a square, the Basilica Ulpia, Trajan's Column and two libraries.
Address:Via Quattro Novembre 94, 00187 Roma
may only be seen from outside