'West Entrance to the Tunnell, Regent's Canal, Islington', London, 1822.
© Science Museum / Science & Society Picture Library
Coloured aquatint showing barges on the Regent's Canal. The Regent's Canal, connecting the Paddington Canal and the Thames at Limehouse, was opened in 1820. The canal cost £772,000 to construct, twice the amount originally estimated. The Islington Tunnel, which at three quarters of a mile long (878 metres) is the longest canal tunnel in London, was completed in 1819.