Faint lettering on brick and stone. A soda ad ghosted in pastel. A barber’s name, half-erased by time. These are Erie’s whispering walls — remnants of businesses long vanished, still clinging to the city’s skin. Trace is a gallery of ghost signs: faded fonts, forgotten trades, and the quiet persistence of paint. Each one a spectral signature, marking where commerce once met community. Look closely. The past is still speaking.