红古 Traditional form: 紅古 Pinyin (reading): Hónggǔ Definitions: see 紅古區/红古区 ( Hónggǔ Qū) Characters: 红 - red, vermillion; to blush, to flush; popular 古 - old, classic, ancient Traditional characters: 紅 - red, vermillion; to blush, to flush; popular 古 - old, classic, ancient