Transportation from Tianjin Railway Station to Attraction by bus or subway

Hi, wanna going to Ancient Culture Street and The Mosque In TJ, from Beijing South Railway Station going to TJ by high speed train, how Long? Plz writen down in Mandarin (Ancient Culture Street, Mosque, TJ Railway Station, Beijing South Railway Station) if start from TJ Railway Station what number of buses? what should i get off ? Or by subway? which one the nearest and comfortable to going to these attraction, It's possible to finish these attraction In 1 day? In The afternoon going back to Beijing Thanks