ip ▁at ▁G last on bury ▁Ab bey ▁and ▁Well s ▁C athedral ▁and ▁their ▁prec inct s ▁and ▁dispers ed ▁resid ences , ▁tit he ▁bar ns ▁and ▁The ▁Abb ot ' s ▁Fish ▁House ▁also ▁figure ▁prom in ently ▁in ▁the ▁list . ▁Pre histor ic ▁def ensive ▁features ▁such ▁as ▁Pon ter ' s ▁Ball ▁Dy ke ▁were ▁supp lement ed ▁in ▁the ▁medieval ▁period ▁by ▁mot te - and - ba iley ▁cast les ▁such ▁as ▁Far le igh ▁Hung er ford , ▁N un ney ▁and ▁Fen ny ▁Castle . ▁Com mer cial ▁and ▁industrial ▁development ▁is ▁represented ▁by ▁the ▁Old ▁Iron ▁Works ▁at ▁M ells ▁and ▁various ▁market ▁cross es . ▁The ▁most ▁recent ▁monuments ▁are ▁World ▁War ▁II ▁b unk ers ▁and ▁bomb ing ▁de co ys ▁on ▁Black ▁Down ▁the ▁highest ▁point ▁of ▁the ▁M end ip ▁Hills , ▁which ▁also ▁appear ▁on ▁the ▁Sed g emo or ▁list ▁as ▁the ▁site ▁cross es ▁the ▁boundary ▁between ▁the ▁districts . ▁ ▁North ▁Som erset ▁▁ ▁North ▁Som erset ▁is ▁a ▁unit ary ▁authority ▁which ▁is ▁admin ister ed ▁independently ▁of ▁the ▁non - met ropol itan ▁county ▁of ▁Som erset . ▁Its ▁administrative ▁headquarters ▁are ▁located ▁in ▁the ▁town ▁hall ▁of ▁West on - super - M are . ▁North ▁Som erset ▁has ▁a ▁resident ▁population ▁of ▁ 2 0 2 , 5 6 6 . ▁ ▁There ▁are ▁ 6 8 ▁scheduled ▁monuments ▁in ▁North ▁Som erset . ▁Some ▁of ▁the ▁oldest ▁are ▁Ne