Complex sentence: This will be the first World Cup ever held in Eastern Europe, and the first held in Europe since 2006; all but one of the stadium venues are in European Russia, west of the Ural Mountains to keep travel time manageable.
Split into simpler sentences: This will be the first World Cup ever held in Eastern Europe, and the first held in Europe since 2006. All but one of the stadium venues are in European Russia, west of the Ural Mountains to keep travel time manageable.