The game follows the rivers across the continent: the Adige and the Arno, the Ebro and the Guadalquivir, the Garonne, the Vistula, the Moskva, the Dniester, the Prut and the Morava. Many of them are not part of the school curriculum, but they are essential landmarks on the map. Each round asks 40 of the 56 rivers, with three minutes for the whole game and three attempts per question. Each wrong attempt costs points, and the time left at the end earns a bonus. Knowing how the rivers link the regions helps you understand the landscape of Europe. A good exercise for school, hikers and map lovers.