Welcome to Agloe!
Roscoe, New York
The town of Agloe, New York, never existed, except in the imagination of the 1930s General Drafting Company. It was invented as a "copyright trap" -- a fake "paper town" whose appearance on anyone else's road map would prove that its information had been stolen. But it failed to work because a shopkeeper saw the name on a map and decided to open a general store there, making it, at least legally, a real place.
The store went out of business and Agloe was forgotten for decades -- until it was resurrected in the 2008 novel, Paper Towns. Soon thereafter an anonymous fan made a professional-looking "Welcome to Agloe!" sign and nailed it to a telephone pole near the former site of the general store.
It's been an attraction ever since.