Pontcysyllte Aqueduct - dramatic pioneering canal crossing of the River Dee
The Pontcysyllte Aqueduct is an impressive navigable water course that carries the Llangollen Canal across the River Dee in the Vale of Llangollen in northeast Wales. The 18-arched stone and cast iron structure was completed in 1805 having taken ten years to design and build, to connect local industries to the main British canal network.