Caen Hill Locks on the Kennet and Avon Canal near Devizes

Caen Hill Locks are a flight of locks on the Kennet and Avon Canal, between Rowde and Devizes in Wiltshire England. The 29 locks have a rise of 237 feet in 2 miles (72 m in 3.2 km) or a 1 in 44 gradient. (Wikipedia)