The Alps is a another world, or city, in CityVille similar to the Downtown and Lakefront. This was added on March 25, 2013.
Unlocking this requires the completion of the Gorge Railway, Alps Tourist Station, and Alps Tourist Center, all of which are a part of the 
Alps Expansion Saga!. Completing the three mentioned buildings will also reward you with the 
Alps Town.
Accessing this area can be done by simply clicking on any of the mountains along the top of your main City.
Along with the Alps Station, the Alps comes with a 
Swiss Ski Chalet, 
Ski Run, and 
Indoor Ski Slope already pre-placed with some road tiles.