In a navigation system, a current position is designated as a center of a start-point area. A category of a spot, e.g., a point of interest, is designated. Feature information of a spot within the start-point area then appears on a display device as initially provided information to a user with respect to the spot. This feature information allows the user to easily perceive the feature of the spot. The user only needs operation up to designating the category and can easily determine whether the spot is an intended one by perceiving its feature.