Final answer:
The Pont du Gard was built to transport water to the city of Nimes, illustrating the Roman Empire's skill in engineering large-scale aqueduct networks to improve urban living conditions.
Step-by-step explanation:
The Pont du Gard is an ancient Roman aqueduct bridge built in the first century AD to carry water over 50 km (31 mi) to the Roman colony of Nemausus (Nîmes). It crosses the river Garden near the town of Vers-Pont-du-Gard in southern France. The Pont du Gard is the tallest of all Roman aqueduct bridges, as well as one of the best preserved. It was added to UNESCO's list of World Heritage sites in 1985 because of its exceptional preservation, historical importance, and architectural ingenuity.
This grand aqueduct is a testament to the advanced engineering capabilities of the Roman Empire, which constructed vast networks of aqueducts to bring water from springs and rivers into cities, thereby improving sanitary conditions and supporting amenities such as bath houses and gymnasium-bath complexes. The Pont du Gard stands as an iconic example of these engineering feats, utilizing a series of arches to span across valleys and transport water efficiently over long distances.