As the world experiences Christopher Nolan’s new film, Oppenheimer, the world is taking a new look at the development of this great and terrible weapon under the organization of the Manhattan Project.

In this episode, we’re taking a look at the three main sites that would be chosen for the Manhattan Project to develop a bomb that would undoubtedly change the world. America's Secret Cities. 

Visit https://www.nps.gov/mapr/index.htm to learn more about the NPS site covered in this week's episode.

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