Stock Photo - The Monumental Center at the Castulo Archaeological Site in Jaen, Spain, is known for its vast array of water features. These include a large central cistern, a network of underground pipes, a deep aquifer with two vertical chimneys, and an aqueduct that dates back to Roman times. The central cistern was created in the 1st century BC, while the network of underground pipes connected several public venues in the city of Castulo. The deep aquifer was dug in the Roman era, and its two vertical chimneys are believed to date from the same period. Other evidence suggests that the aqueduct was in use as early as 700 BC. This impressive system was essential in providing Castulo with clean water and was likely an integral part of the city's urban infrastructure.