Similarly, a virtual vehicle of the own vehicle that makes a U-turn is displayed as well at the second display device 4 as a moving image of a virtual image 69′ as being superimposed to the taken scenery 39. 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 a position just in front of the screen of the monitor device 24 as illustrated in FIG. 20A, moves at a high speed to a turning position illustrated in FIG. 20B, and travels toward the own vehicle side on the opposing lane 67′ as illustrated in FIG. 20C.