This janitor spent 7 years secretly designing a maze that has experts stumped
The Japanese are humble, and this Japanese man didn’t want any credit for his work. It took 30 years for the maze – which experts have claimed unsolvable – to be released to the public, and that was only done because his daughter posted it on Twitter. The maze is nearly three feet wide and took seven years to complete during his off-hours. You might have to spend even longer to solve it.