The Patriots Point museum in Charleston SC contains the aircraft carrier USS Yorktown, the destroyer USS Laffey, the submarine USS Clagamore—all from the WW2 and Cold War eras—and an exhibit about the Vietnam War. I spent the whole day here.
Some photos from a visit.
For those who don't know, I live in a converted campervan and am traveling around the country, posting photo diaries of places that I have visited. :)