The Los Arcos Aqueduct is a Renaissance structure built in 1537 to carry water across the Viaducto ravine into Teruel. Its architect designed it to evoke a Roman aqueduct — multiple tiers of arches in stone — and the result is one of the most dramatic pieces of engineering in Aragon. It stands at the edge of the old city where the plateau drops sharply away.
The lower level of the aqueduct has been opened as a public walkway, which means you can walk along an arch suspended above the ravine. The views from the walkway — the old town rising above on one side, the valley below on the other — are among the best in Teruel. The aqueduct is free to access and easy to find on the southern edge of the historic centre.