▁some ▁time ▁ 3 rd - century ▁Roman ▁alt ars ▁and ▁tomb st ones ▁were ▁used ▁as ▁raw ▁materials ; ▁some ▁of ▁the ▁tomb st ones ▁are ▁on ▁display ▁in ▁the ▁Gros ven or ▁Museum . ▁ ▁The ▁wall ▁and ▁its ▁to wers ▁were ▁dam aged ▁during ▁the ▁English ▁Civil ▁War , ▁particularly ▁in ▁the ▁sie ges ▁of ▁the ▁city ▁between ▁ 1 6 4 4 ▁and ▁ 1 6 4 6 . ▁ ▁Further ▁re building ▁and ▁rep airs ▁were ▁carried ▁out ▁following ▁the ▁war , ▁but ▁it ▁was ▁a ▁constant ▁struggle ▁to ▁co pe ▁with ▁the ▁scale ▁of ▁the ▁necessary ▁rep airs . ▁ ▁By ▁the ▁ 1 8 th   century ▁the ▁walls ▁had ▁out l ived ▁their ▁purpose ▁as ▁a ▁def ensive ▁structure , ▁and ▁were ▁becoming ▁popular ▁as ▁a ▁prom en ade . ▁ ▁In ▁ 1 7 0 7 , ▁the ▁city ▁Assembly ▁spent ▁£ 1 , 0 0 0 ▁( equ ivalent ▁to ▁£ ▁in ▁) ▁to ▁repair ▁the ▁walls ▁and ▁to ▁flag ▁the ▁foot way . ▁ ▁Dist ingu ished ▁visitors ▁who ▁walked ▁the ▁walls ▁around ▁that ▁time ▁included ▁John ▁Wes ley ▁and ▁Samuel ▁Johnson . ▁ ▁The ▁four ▁major ▁gates ▁were ▁replaced , ▁East gate , ▁Br id geg ate ▁and ▁Water gate ▁during ▁the ▁ 1 8 th   century ▁and ▁North gate , ▁with ▁its ▁associated ▁ga ol , ▁in ▁ 1 8 0 8 – 1 0 . ▁ ▁Short ly ▁after ▁ 1 8 1 0 , ▁part ▁of ▁the