lock for couple make a promise to love forever, master keys hanging on the rails of bridge, the sign of love and romantic affectio

affectio affection as background beautiful blurred bridge city closeup colorful concept couple culture engagement eternity fence forever friendship hang hanging happiness heart iron key keys landmark lock locks love loyalty make many master metal nature outdoors padlock padlocks paris promise railing rails red river romance romantic rusty shape sign summer symbol symbolic tourism tradition traditional travel unity valentine wedding