Pontcysyllte Aqueduct, which forms a key part of the Llangollen Canal, three miles east of Llangollen, crossing over the River Dee at the dizzy height of 126 feet. At over 1000 feet long, Pontcysyllte is the longest and highest cast-iron aqueduct in the world. Treasured by British Waterways, it is today a protected Grade I listed building, a Welsh National Monument and is one of the seven wonders of the British Inland Waterways System. It is of course still used for its original purpose, being crossed by more than a thousand canal boats a year.
Pontcysylte Aqueduct is 20 minute drive from Sweeney Hall Hotel.