▁Bath ) ▁to ▁the ▁south ▁of ▁the ▁spring . ▁The ▁spring ▁is ▁now ▁hous ed ▁in ▁ 1 8 th - century ▁buildings ▁designed ▁by ▁architect s ▁John ▁Wood , ▁the ▁E lder ▁and ▁John ▁Wood , ▁the ▁Young er ; ▁visitor ▁access ▁is ▁via ▁an ▁ 1 8 9 7 ▁concert ▁hall ▁by ▁J ▁M ▁Bry don , ▁which ▁is ▁an ▁east ward ▁continu ation ▁of ▁the ▁Grand ▁P ump ▁Room ▁with ▁a ▁glass - dom ed ▁centre ▁and ▁single - store y ▁radius ed ▁corner . ▁ ▁Bes ide ▁the ▁bath s , ▁a ▁temple , ▁in ▁classical ▁style ▁with ▁four ▁large , ▁fl uted ▁Cor inth ian ▁columns ▁and ▁dedicated ▁to ▁Min erva ▁The ▁temple ▁remained ▁in ▁use ▁for ▁worship ▁until ▁around ▁the ▁ 4 th ▁century , ▁but ▁the ▁site ▁is ▁now ▁occupied ▁by ▁the ▁Grand ▁P ump ▁Room . ▁ ▁The ▁city ▁was ▁given ▁def ensive ▁walls , ▁probably ▁in ▁the ▁ 3 rd ▁century , ▁but ▁they ▁disappeared ▁during ▁subsequent ▁re develop ments . ▁The ▁line ▁of ▁then ▁formed ▁the ▁basis ▁of ▁the ▁medieval ▁walls ▁en clos ing ▁, ▁some ▁which ▁surv ived ▁until ▁the ▁ 1 8 th ▁century . ▁The ▁Ang lo - S ax ons ▁called ▁the ▁town ▁Ba ð um , ▁Ba ð an ▁or ▁Ba ð on , ▁meaning ▁" at ▁the ▁bath s ," ▁the ▁source ▁of ▁the ▁present ▁name . ▁In ▁ 6 7 5 , ▁Os ric , ▁King ▁of ▁the ▁H w ic ce , ▁set ▁up ▁a