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The Great Western Railway (GWR) was Isambard Kingdom Brunel's most renowned railway project. Brunel, a renowned engineer, designed and built the GWR in the 1830s and 1840s. It connected London to Bristol and the West of England, revolutionizing transportation and trade in the region. The GWR was known for its innovative engineering, including Brunel's iconic Box Tunnel and the Clifton Suspension Bridge.