The remains of the roman Aqueduct can be visited
Roman aqueduct of Nîmes

The Roman Aqueduct to Nîmes is located in the French region of Occitanie. As part of a once almost 50-kilometer-long water supply system, it served to provide the Roman city of Nemausus (today Nîmes) with spring water and is known for its well-preserved bridge sections.
History+
The construction of the aqueduct, which transported water from the springs near Ucetia (Uzès) to Nemausus, is now dated to the mid-1st century AD, although earlier estimates suggested a construction around 19 BC. Its primary function was to cross the Gardon Valley, for which the bridge, the Pont du Gard, was built. After its completion, the aqueduct supplied the approximately 20,000 inhabitants of Nemausus with about 20,000 cubic meters of water daily. About two-thirds of the entire pipeline ran underground and had to be carved into the rock.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: Mimova(Mimova (talk)) / Public domain via Wikimedia Commons
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 43.9505, 4.5290