Llangollen Bridge is built across the River Dee at the North end of the high street of Llangollen in the county of Denbighshire in North-east Wales. The Bridge is listed as one of the seven wonders of Wales and is a Grade I listed building. There has been a bridge across the Dee at Llangollen since at least 1284, though the current bridge appears to date to the 16th or 17th century when an earlier bridge was rebuilt.