Any object, device, display, structure, or part thereof, situated outdoors, which is used to advertise, identify, display, direct or attract attention to an object, person, institution, organization, business, product, service, event, or location by any means, including words, letters, figures, designs, symbols, fixtures, colors, illumination, or projected images. Signs do not include the flag or emblem of any nation, organization of nations, state, city, religious, fraternal, or civic organization; also merchandise and pictures or models of products or services incorporated in a window display, works of art which in no way identify a product, or scoreboards located on athletic fields. Traffic control and other public agency signs located within a right-of-way are not included within this definition and are not regulated by the provisions of this chapter.