The Hunger Games is a beloved series that depicts a battle of wills between an oppressed populace and its tyrannical government. Known also as the "Girl on Fire" and the "Mockingjay," series protagonist Katniss Everdeen symbolizes this rebellion, bringing hope to her home, District 12 and the nation of Panem as a whole. The main 12 districts aren't the only locations in the country beyond The Capitol, however, with one area being highly mysterious.
Source：https://www.cbr.com/why-district-13-not-in-hunger-games/
