The Pontcysyllte Aqueduct was built by Thomas Telford in 1805 and is the largest aqueduct in the United Kingdom; it carries the Llangollen Canal over the River Dee and is a World Heritage Site, being considered a masterpiece of civil engineering.
The Pontcysyllte Aqueduct was built by Thomas Telford in 1805. The Pontcysyllte Aqueduct is the largest aqueduct in the United Kingdom. It carries the Llangollen Canal over the River Dee. It is a World Heritage Site. A World Heritage Site is being considered a masterpiece of civil engineering.