Navigation system and method for displaying poi of land mark

The invention of landmarks (land mark) period information specific period information from the period information present on the route data provided by the navigation system: By controlling a display priority with respect to the (POI Point Of Interest) path depending on the position of the vehicle a landmark information, even if the cycle period information provided in the data phase is changed is always on the period information display method and a navigation system that displays by including on said route data. Period information display method according to the invention determine the at least one landmark period information exists in the path data of the step, driving being a vehicle for holding priority information corresponding to each landmark period information to priority database, and the searching the priority information of the period identified landmark information from the priority database, first, the found set from the ranking information n the step of ranking identify within the priority information, and landmark period information of the identified priority information a, and a step of visualization of the display area in consideration of the position of the vehicle. Landmark, period information, priority, display and navigation