To effectively use a display.

This navigation device 100 includes a storage part 101 for therein storing map information used for route guidance and design image information obtained by making an ornamental design unrelated to the map information, a choice part 102 for choosing either the map information stored in the storage part 101 or the image information; a detection part 103 for detecting the traveling state of a movable body; a conversion part 104 for changing the image information according to the traveling state of the movable body when the image information is chosen by the choice part 102; and a display part 105 for performing display either in an ordinary mode wherein the map information chosen by the choice part 102 is displayed or in a design mode wherein the design information is displayed which is chosen by the choice part 102 and changed by the conversion part 104.