- Italy: Rome has several well-preserved aqueducts, including the Aqua Claudia and the Aqua Appia.
- France: The Pont du Gard in southern France is an iconic Roman aqueduct that spans the Gard River.
- Spain: The city of Segovia boasts a remarkable Roman aqueduct that remains in use today.
- Turkey: The city of Istanbul (formerly Constantinople) has several Roman aqueducts, including the Valens Aqueduct.
- Greece: The ancient city of Athens has remnants of Roman aqueducts.
- North Africa: Countries like Tunisia, Algeria, and Morocco have remains of Roman aqueducts from the Roman province of Africa.