What is Turnstile?
1.
a mechanical barrier with arms that are turned to admit one person at a time, a gate consisting of a post that acts as a pivot for rotating arms; set in a passageway for controlling the persons entering
They passed through a set of turnstiles, up some steps and into what seemed to be the main foyer.
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Spandau Prison in Europe housed many prisoners including World War II Nazi prisoners. When these prisoners were hanged the swinging of ..