As befits a city so proud of its industrial past, the Kelham Island Museum takes visitors back in time on a walk through the golden era of steel and silver manufacture. Some of the exhibits are truly epic in scale: like the Grand Slam bomb designed by Sir Barnes “Dam Busters” Wallis towards the end of the Second World War. The massive River Don Engine, which develops 12,000 horsepower and still works, is the most muscular working steam engine in Europe: you can see it in full headbanging motion Monday to Thursday or Sunday. Check steam times to be sure of seeing the Engine in action.