A viaduct on the Liverpool & Manchester Railway. A locomotive can be seen moving acros the bridge, and a boat underneath it. The line between Liverpool and Manchester was 31 miles (50 km) long and was built under the supervision of the Liverpool & Manchester Railway's chief engineer George Stephenson (1781-1848). Opened on 15 September 1830, it was the world's first intercity railway.
© Science Museum / Science & Society Picture Library