<p>Route extraction means (134) of a navigation system (1) extracts attribute information unique to a route correlated to a read position of a printed matter (5) by a mobile input device (4) by using a route conversion table (82). Landmark extraction means (134) extracts attribute information on the landmark correlated to the attribute information unique to the extracted route by using a landmark table (83). Display means (66) displays the landmark extracted by the landmark extraction means (134) together with the route by using the latitude/longitude data on the landmark. Thus, it is possible to display a landmark such as a convenience store built recently on a screen based on the navigation data.</p>
