The Story Behind Pittsburgh’s Unsolved Protractor Mystery Will Leave You Baffled

Pittsburgh boasts its fair share of urban legends and unsolved mysteries. One mystery, first uncovered in 2011, continues to barrel forward with plenty of speculation by Pittsburghers but no definitive conclusion. Perhaps you have the answer to Pittsburgh’s unsolved protractor mystery?

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What do you think of Pittsburgh’s unsolved protractor mystery? What are your theories on who has been leaving the protractors around the city since 2011? Share your theories below!