The structure built by the Romans to transport water to their cities is called an aqueduct. These impressive engineering feats utilized gravity to move water from distant sources, such as rivers and springs, to urban centers, thereby supplying public baths, fountains, and households. The construction of aqueducts greatly improved public health and the quality of life in Roman cities. Notable examples include the Aqua Appia and Aqua Claudia, showcasing the Romans' advanced understanding of hydraulics and engineering, as many of these aqueducts still stand today, highlighting the ingenuity of Roman infrastructure.