Carnival revellers celebrate the start of the carnival season in Cologne...Carnival revellers throw confetti as they celebrate the start of the carnival season in Cologne November 11, 2015. In many parts of Germany, at 11:11am on November 11, people mark the official start of carnival, a season of controlled raucous fun that reaches a climax during the days before Ash Wednesday and the start of Lent.      REUTERS/Wolfgang Rattay