Photo credit: Manuel González Olaechea y Franco
The Aqueduct of Segovia in Segovia, Spain, is one of the most significant and best-preserved monuments left by the Romans on the Iberian Peninsula. It was likely constructed at the end of the 1st century AD, and transported water for centuries from the Fuente Fría River over a distance of roughly 32 kilometres (20 mi) before reaching the city, only having been decommissioned recently.