DAVID GREENE, HOST:
Good morning. I'm David Greene. Have you ever been to Bielefeld? Do you know anyone who has? Officials in that German city are offering a million euros if you can prove that the town does not exist. There is this long-running online conspiracy theory that the city is an illusion. Now, Bielefeld has a university, a castle, hundreds of thousands of people living there. But really, let's be honest. Has anyone ever met someone from Bielefeld? Transcript provided by NPR, Copyright NPR.