CINCINNATI — To some travelers, signs are just a blight on the scenery. But to others (including me), America’s big, brash, commercial signs are symbols of vitality, imagination, artistry and even history. That view is enshrined at the fascinating and (literally) flashy American Sign Museum, located in a vast old parachute factory in an industrial district north of downtown Cincinnati.adcelannotate = {"mobilepaywallcategory" : "MOBILE_PREM-TRAVEL","nativepaywallcategory" : "NATIVE_PREM-TRAVEL"};