I bought this for my children (ages 12 and 13) and it has since become our favorite family game.  The game can take two hours or so to complete, but everyone stays engaged the whole time.  The board has different routes that players can make between cities.  Each route offers a set amount of points and the player with the highest point total at the end wins.  I think that this works so well for a variety of age groups as it does not require any prior knowledge about geography.  However, it is also challenging enough to keep adults interested.  Awesome family game! Highly recommend!