1. An image-displaying sheeting comprising a retroreflective sheeting and an imaging element disposed on a front surface of the retroreflective sheeting, the imaging element comprising: a light-transmitting prismatic sheeting having a surface provided with a plurality of parallel prisms; and an adhesive layer that adheres the prismatic sheeting to the front surface of the retroreflective sheeting; wherein at least a portion of the imaging element is shaped in the form of indicia.