Observations made by the Spaniard Pedro Tafur, who visited Rome in 1436, reveal misunderstandings of the very nature of the Roman aqueducts: Through the middle of the city runs a river, which the Romans brought there with great labour and set in their midst, and this is the Tiber.
Pengamatan yang dilakukan oleh Spanyol Pedro Tafur, yang mengunjungi Roma pada tahun 1436, mengungkapkan kesalahpahaman tentang sifat dari saluran air Romawi: Through the middle of the city runs a river, which the Romans brought there with great labour and set in their midst, and this is the Tiber.