“You fall in love with Rome very slowly, gradually, and then for life”. Nikolaj Vasil'evič Gogol'
De aquaeductu is a two-book official report given to the emperor Nerva or Trajan on the state of the aqueducts of Rome, and was written by Julius Sextus Frontinus at the end of the 1st century AD. It is also known as De Aquis or De Aqueductibus Urbis Romae. (Wikipedia)