One of the most interesting non-fiction books I have read is Richard Rhodes' "The Making of the Atomic Bomb". It talks about how the majority of the brains behind the Manhattan Project came from one school in Budapest, Hungary called the 'Minta School'. John von Neumann being one of those geniuses.

[1] The Making of the Atomic Bomb, Richard Rhodes https://www.amazon.com/Making-of-Atomic-Bomb-audiobook/dp/B0...