Squirrel Cage Jail is located in Pottawattamie Count Council Bluffs, Iowa The unique jail was built in 1885 on the site of an old church morgue; one of 18 revolving jails built — and the only one with three stories. Today, it’s one of only three left standing. What’s a revolving jail you ask? The jail’s pie-shaped cells revolve inside a cage that only has one opening. To let prisoners…