id com be ▁C res cent ▁and ▁Royal ▁Bath s ▁Tre at ment ▁Centre ▁in ▁Bath ▁Street . ▁ ▁The ▁Grand ▁P ump ▁Room ▁itself ▁includes ▁a ▁North ▁Col onna de ▁of ▁ 9 ▁b ays , ▁with ▁un fl uted ▁I onic ▁columns . ▁The ▁South ▁Col onna de ▁is ▁similar ▁but ▁had ▁an ▁upper ▁floor ▁added ▁in ▁the ▁late ▁ 1 9 th ▁century . ▁ ▁The ▁col onn ades ▁and ▁side ▁wall ▁of ▁the ▁P ump ▁Room ▁have ▁a ▁fac ade ▁on ▁St all ▁Street . ▁Bald win ▁rose ▁rapidly , ▁becoming ▁a ▁leader ▁in ▁Bath ' s ▁architect ural ▁history . ▁Great ▁P ult en ey ▁Street , ▁where ▁Bald win ▁eventually ▁lived , ▁is ▁another ▁of ▁his ▁works : ▁this ▁wide ▁bou lev ard , ▁constructed ▁ ▁and ▁over ▁ ▁long ▁and ▁ ▁wide , ▁leading ▁from ▁Laura ▁Place ▁ ▁is ▁l ined ▁on ▁both ▁sides ▁by ▁Georg ian ▁terra ces . ▁ ▁Ar ound ▁ 1 7 7 0 ▁the ▁ne oc lass ical ▁architect ▁Robert ▁Adam ▁designed ▁P ult en ey ▁Bridge , ▁a ▁three - arch ed ▁bridge ▁sp anning ▁the ▁Av on . ▁He ▁used ▁as ▁his ▁prototype ▁an ▁original , ▁but ▁un used , ▁design ▁by ▁Andrea ▁P all ad io ▁for ▁the ▁R ial to ▁Bridge ▁in ▁Ven ice . ▁Thus , ▁P ult en ey ▁Bridge ▁became ▁not ▁just ▁a ▁means ▁of ▁crossing ▁the ▁river , ▁but ▁also ▁a ▁sho pping ▁ar cade . ▁Al ong ▁with ▁the ▁R ial to