An image display apparatus has: a synthesizing device (132) for synthesizing a rear image (111B) and a rear side image (111BL, 111BR) to generate a synthesized image (111C), wherein the rear image is captured by a rear imaging device (11B) for imaging a rear area of a vehicle (1) and the rear side image is captured by a rear side imaging device (11BL, 11BR) for imaging a rear side area of the vehicle; and a displaying device (14) for displaying the synthesized image, the synthesizing device generates the synthesized image so that the synthesized image generated when the vehicle goes in reverse includes a first scene that is below, viewed from the vehicle, a second scene that is included in the synthesized image generated when the vehicle does not go in reverse.