United States Naval Academy

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This is the institution where soon-to-be Naval and Marine officers are educated and trained. It is also the second-oldest of the five U.S. service academies. Notable alumni include Jimmy Carter, John McCain, and sci-fi writer, Robert Heinlein. To visit it's best to check the website as hours differ from season to season. Additionally, make sure you bring at least two forms of valid identification. (Submitted by Theresa Gibbs)