The roofline of Manchester city centre's historic town hall will be visible again for the first time in more than three years as the multi-million pound restoration project reaches a key milestone. A huge crane with a lifting capacity of 300 tonnes has now been moved into position and the building's temporary roof will be lifted off in a staged operation. The work should expose the town hall's roof to the naked eye. An enormous temporary covering has kept the Grade I-listed building watertight w