A secret bookcase decoy is something you only see in cartoons, but this man is making it a reality. The classic secret door bookshelf has a surprisingly rich history. In 1876, John Danner of Canton, Ohio, invented the first ever revolving bookcase. The primary motive for the design was not to create a secret door, but rather to create a functional space for his many books. This idea ignited the imaginations of many creators including, and most notably the writers of Scooby-Doo cartoons.
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