1 7 0 , 0 0 0 , ▁about ▁half ▁of ▁whom ▁live ▁in ▁Bath , ▁making ▁it ▁ 1 2   times ▁more ▁dens ely ▁populated ▁than ▁the ▁rest ▁of ▁the ▁district . ▁ ▁There ▁are ▁ 5 8 ▁scheduled ▁monuments ▁in ▁Bath ▁and ▁North ▁East ▁Som erset . ▁Some ▁of ▁the ▁oldest ▁are ▁Ne ol ith ic ▁including ▁the ▁St anton ▁D rew ▁stone ▁circles ▁and ▁several ▁tum uli . ▁The ▁Great ▁Circle ▁at ▁St anton ▁D rew ▁is ▁the ▁second ▁largest ▁stone ▁circle ▁in ▁Britain ▁( after ▁A ve bury ); ▁it ▁is ▁considered ▁to ▁be ▁one ▁of ▁the ▁largest ▁Ne ol ith ic ▁monuments ▁to ▁have ▁been ▁built . ▁The ▁date ▁of ▁construction ▁is ▁not ▁known ▁but ▁is ▁thought ▁to ▁be ▁between ▁ 3 0 0 0 ▁and ▁ 2 0 0 0 ▁B CE ▁which ▁places ▁it ▁in ▁the ▁Late ▁Ne ol ith ic ▁to ▁Early ▁Bron ze ▁Age . ▁There ▁are ▁also ▁several ▁Iron ▁Age ▁hill ▁for ts ▁such ▁as ▁the ▁one ▁at ▁Ma es ▁Kn oll , ▁which ▁is ▁connected ▁to ▁the ▁W ans dy ke ▁a ▁medieval ▁def ensive ▁earth work , ▁several ▁sections ▁of ▁which ▁are ▁included ▁in ▁this ▁list . ▁The ▁Rom ano - B rit ish ▁period ▁is ▁represented ▁with ▁several ▁sites , ▁most ▁not ably ▁the ▁Roman ▁Bath s ▁and ▁city ▁walls ▁in ▁Bath . ▁More ▁recent ▁sites ▁include ▁several ▁brid ges ▁which ▁date ▁from ▁the ▁Middle ▁A ges ▁to ▁the ▁P all ad ian ▁bridge ▁in ▁Prior ▁Park ▁Land s