(1) Sign means any structure, or natural object such as a tree, bush, rock, lawn or ground itself, part thereof, or device attached thereto, or painted or represented thereon which shall be used to attract attention to any object, product, place, activity, person, institution, organization, or business, or which shall display or include any letter, word, model, banner, flag, pennant, insignia, device or representation, used as, or which is in the nature of an announcement, direction, or advertisement. For the purposes of this Code, "sign" does not include the flag, pennant, burgee, badge or insignia of any domestic government or governmental agency.