In the midst of the tourist season, the Austrian city of Salzburg is turning off the lights at its major sights one hour early, to save electricity amid a looming energy crisis. Starting Monday, the floodlights illuminating major landmarks including the city’s Hohensalzburg fortress will be switched off one hour earlier, at midnight, city councillor Martina Berthold announced on Friday. Reducing the lighting at Hohensalzburg, one of the largest medieval fortresses in Europe which towers some 500 metres above the city centre, will be particularly effective as it requires some 13,000 watts, Bert…