Everything about the conception and creation of Rockefeller Center was outsized and wildly improbable. Launched in the teeth of the Depression, the most ambitious construction project since the Pyramids was the unintended result of a philanthropic gesture gone awry. But when it was finished, John D. Rockefeller Jr.'s accidental adventure redefined the very nature of an American city. In this hugely appealing book, Daniel Okrent weaves together the...