When you think of National Parks, maybe you only think of Parks here in the United States. Take Montana, for example, we have Glacier National Park, which we share with Canada, although they call it Waterton National Park. It just so happens that the folks over at WonderTok decided to rank the Top 10 National Parks in the World. Gallery Credit: Derek WolfWhich Montana National Park is one of the world's favorites? According to the site, Yellowstone National Park is the number one National Park in the world.