There is provided an image display system. An imaging device is provided for a vehicle and configured to capture a partial area of surroundings of the vehicle. A display device is provided for a head-mounted device, which is to be mounted to user's head, and has a display screen. The display screen is disposed at a position that is within a front viewing field of a user wearing the head-mounted device. A control device is configured to display an image captured by the imaging device on the display screen.