Pontcysyllte Aqueduct, Wales, UK
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The Pontcysyllte Aqueduct is a remarkable feat of engineering located in Wales, United Kingdom. It carries the Llangollen Canal over the River Dee in the Vale of Llangollen and is renowned for being the longest and highest aqueduct in Britain. Designed by civil engineer Thomas Telford and completed in 1805, the aqueduct is a testament to the ingenuity of the Industrial Revolution. The structure is made of cast iron and stone, stretching 307 meters (1,007 feet) in length and standing 38 meters (126 feet) above the river. It consists of 19 arches, each with a span of 16 meters (52 feet). The aqueduct's trough, which holds the canal water, is made of cast iron plates that are bolted together and sealed with a mixture of flannel and lead. Pontcysyllte Aqueduct is not only an important piece of industrial heritage but also a popular tourist attraction. It was designated a UNESCO World Heritage Site in 2009, recognizing its significance as a pioneering example of civil engineering. Visitors can walk across the aqueduct or take a leisurely boat trip to experience its breathtaking views and appreciate the craftsmanship of this historic structure.