▁cells ▁that ▁revol ved ▁inside ▁of ▁a ▁c age . ▁The ▁building ▁was ▁designed ▁for ▁maximum ▁security ▁with ▁minimal ▁contact ▁between ▁the ▁prisoners ▁and ▁the ▁j ail ers . ▁ ▁The ▁building ▁was ▁used ▁as ▁a ▁j ail ▁until ▁ 1 9 6 9 . ▁ ▁In ▁ 1 9 7 1 ▁the ▁Council ▁Bl uff s ▁Park ▁Board ▁acquired ▁the ▁building ▁and ▁in ▁ 1 9 7 7 ▁the ▁county ▁historical ▁society ▁took ▁ownership ▁of ▁the ▁building ▁and ▁maintain s ▁it ▁as ▁a ▁museum . ▁ ▁References ▁ ▁External ▁links ▁ ▁S qu ir rel ▁C age ▁J ail ▁- ▁Historical ▁Society ▁of ▁Pot ta w att am ie ▁County ▁ ▁Category : G overn ment ▁buildings ▁completed ▁in ▁ 1 8 8 5 ▁Category : M useum s ▁in ▁Council ▁Bl uff s , ▁Iowa ▁Category : National ▁Register ▁of ▁Historic ▁Places ▁in ▁Pot ta w att am ie ▁County , ▁Iowa ▁Category : J ails ▁on ▁the ▁National ▁Register ▁of ▁Historic ▁Places ▁in ▁Iowa ▁Category : Pr ison ▁museum s ▁in ▁the ▁United ▁States ▁Category : History ▁museum s ▁in ▁Iowa ▁Category : J ails ▁in ▁Iowa <0x0A> </s> ▁Haus bru ch ▁is ▁a ▁quarter ▁of ▁Hamburg , ▁Germany ▁in ▁the ▁Har burg ▁bor ough . ▁It ▁was ▁first ▁mentioned ▁in ▁ 1 5 5 3 . ▁The ▁large ▁housing ▁estate ▁of ▁Ne uw ied ent hal ▁is ▁located ▁in ▁the ▁quarter . ▁ ▁Name ▁The ▁name ▁of ▁the ▁quarter ▁der ives ▁from ▁a ▁car r ▁( G erman :