Further, a virtual vehicle of the own vehicle that makes a U-turn is displayed at the first display device 3 as a moving image of a virtual image 69 as being superimposed to the actual scenery 36. The virtual image 69 is displayed so that the virtual vehicle of the own vehicle makes a U-turn on the arrow of the symbol image 68 as having the arrow as the trajectory therefor. Specifically, the virtual image 69 appears to move out frontward from the front windshield 15 as illustrated in FIG. 19A, moves at a high speed to a turning position illustrated in FIG. 19B, and travels toward the own vehicle side on the opposing lane 67 as illustrated in FIG. 19C.