1. A map display apparatus using a direction/distance mark, comprising: a map display unit configured to display a map on a display screen; a direction/distance mark display unit configured to display: a direction line indicating a direction with a reference point of the screen being located in a center of the display screen, a plurality of equidistant circles with the reference point being located in the center of the display screen, and a distance from the reference point indicated by each equidistant circle; and an instructed point detecting unit, wherein when the direction/distance mark display unit displays the direction/distance mark, and the instructed point detecting unit detects an instructed point on the screen that is touched, as a point indicating a direction on the direction/distance mark and a distance from the reference point, wherein the map display unit displays a map including the point detected by the instructed point detecting unit.