Italy
This is a great museum, and you'll likely have the place to yourself—only visitors in the know will know to find a museum off the Mall, ''on a navy base''. The museum walks you in chronological order through exhibits of each major point in Naval History—the Revolutionary War, battles with the Barbar
y Pirates, the Civil War, polar exploration, WWI, WWII, the Korean War, and through the present day. There is also an interactive submarine exhibit, and a host of real big guns out in the courtyard. The ''biggest'' exhibit here is the destroyer USS Barry, docked just outside the museum, which you can explore on tours. The gift shop is as good a place as you'll find to purchase various Navy-related souvenirs. Be sure to call in advance to make certain you will be able to visit - it appears to now be limited to those with military IDs or Department of Commerce Personnel.
Listen to the audio guide for U.S. Navy Museum Free on WIP — starts by itself when you arrive, even with the screen off