▁Ald erm ary ▁was ▁badly ▁dam aged ▁in ▁the ▁Great ▁Fire ▁of ▁London ▁of ▁ 1 6 6 6 , ▁although ▁parts ▁of ▁its ▁walls ▁and ▁tower ▁surv ived . ▁ ▁It ▁was ▁mostly ▁re built ▁by ▁Sir ▁Christopher ▁W ren ▁in ▁a ▁Goth ic ▁style . ▁A ▁legacy ▁of ▁£ 5 , 0 0 0 ▁had ▁been ▁left ▁by ▁one ▁Henry ▁Rog ers ▁for ▁the ▁re building ▁of ▁a ▁church , ▁and ▁his ▁wid ow ▁agreed ▁to ▁use ▁it ▁to ▁fund ▁the ▁reconst ruction ▁of ▁St ▁Mary ' s . ▁According ▁to ▁some ▁sources , ▁she ▁st ip ulated ▁that ▁the ▁new ▁church ▁should ▁be ▁an ▁exact ▁im itation ▁of ▁the ▁one ▁largely ▁destroyed . ▁ ▁The ▁church ▁as ▁re built ▁has ▁an ▁a is led ▁nave , ▁six ▁b ays ▁long , ▁with ▁a ▁cler est ory . ▁There ▁is ▁a ▁short ▁ch an cel . ▁The ▁tower ▁is ▁attached ▁to ▁the ▁south ▁west ▁corner ▁of ▁the ▁building , ▁and ▁is ▁entered ▁through ▁a ▁western ▁lo bb y . ▁It ▁is ▁divided ▁into ▁store ys ▁by ▁string ▁courses ; ▁the ▁corners ▁have ▁oct ag onal ▁tur rets , ▁termin ating ▁in ▁what ▁George ▁God win ▁called ▁" car ved ▁fin ial s ▁of ▁imp ure ▁design ". ▁The ▁nave ▁and ▁a is les ▁are ▁separated ▁by ▁arc ades ▁of ▁cluster ed ▁columns , ▁supporting ▁somewhat ▁fl atten ed ▁Goth ic ▁arch es . ▁The ▁ce il ings ▁are ▁decor ated ▁with ▁elaborate ▁pl aster ▁fan ▁v ault ing . ▁The ▁east