832-138353 - Aerial view, aqueduct on Harkortsee lake, Hensteysee lake, Ruhr river, Ruhrtal valley, Herdecke, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe
832-138349 - Aerial view, aqueduct on Harkortsee lake, Hensteysee lake, Ruhr river, Ruhrtal valley, Herdecke, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe
832-138350 - Aerial view, aqueduct on Harkortsee lake, Hensteysee lake, Ruhr river, Ruhrtal valley, Herdecke, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe
841-516 - Navigation on the Canal du Midi, between Carcassone and Beziers, the Repudre Aqueduct, the first aqueduct built on the Canal du Midi, Paraza, Aude, Languedoc Roussillon, France, Europe
841-513 - Navigation on the Canal du Midi, between Carcassone and Beziers, the Repudre Aqueduct, the first aqueduct built on the Canal du Midi, Paraza, Aude, Languedoc Roussillon, France, Europe
831-534 - Barge and pedestrians on the Pontcysyllte Aqueduct, UNESCO World Heritage Site, built by Thomas Telford in 1805, crossing River Dee near Llangollen, Wales, United Kingdom, Europe
801-175 - Narrow boat crossing the Pontcysyllte Aqueduct, built by Thomas Telford and William Jessop, UNESCO World Heritage Site, Llangollen Canal, Wales, United Kingdom, Europe
797-6012 - Pont du Gard, UNESCO World Heritage Site, view from west side of the Roman aqueduct in glowing evening light with reflection in the water below, Languedoc-Roussillon, France, Europe
797-6013 - Detail of section of the three tiers of continuous arches of Roman aqueduct, Pont du Gard, UNESCO World Heriyage Site, Languedoc-Roussillon, France, Europe
797-6014 - Roman aqueduct from high vantage point on the western side showing three tiers of continuous arches spanning river, Pont du Gard, Languedoc-Roussillon, UNESCO World Heritage Site, France, Europe
641-10804 - Aqueduct built in the 1720s and 1730s to bring water from nearby springs to Santiago de Queretaro (Queretaro), a UNESCO World Heritage Site, Queretaro, Queretaro State, Mexico, North America
641-10801 - Aqueduct built in the 1720s and 1730s to bring water from nearby springs to Santiago de Queretaro (Queretaro), a UNESCO World Heritage Site, Queretaro, Queretaro State, Mexico, North America
641-10800 - Aqueduct built in the 1720s and 1730s to bring water from nearby springs to Santiago de Queretaro (Queretaro), a UNESCO World Heritage Site, Queretaro, Queretaro State, Mexico, North America