High Quality Content by WIKIPEDIA articles! The Baths of Trajan were a massive thermae, a bathing and leisure complex, built in ancient Rome starting from 104 AD and dedicated during the Kalends of July in 109. Commissioned by Emperor Trajan, the complex of baths occupied space on the southern side of the Oppian Hill on the outskirts of what was then the main developed area of the city, although still inside the boundary of the Servian Wall. The architect of the complex is said to be Apollodorus of Damascus. After being utilized mainly as a recreational and social center by Roman citizens, both men and women, for many years, the baths, in use as late as the early fifth century seem to have been deserted at the time of the siege of Rome by the Goths in 537; with the destruction of the Roman aqueducts, the thermae were abandoned, as was the whole of the now-waterless Mons Oppius.