The best thing about Vietnam is the people. They are so forgiving and very Buddhist. The American pilots that were at My Lai go back.  The Vietnamese wonder why William Calley never went back and asked forgiveness.  They would have forgiven him too.  I went as a guilty American and the first thing I did was to visit Hoa Lo prison (the Hanoi Hilton where McCain was incarcerated). It was built by the French in the 1880s for Vietnam Freedom Fighters.  That is who Ho Chi Mihn (Uncle Ho) really was - a freedom fighter for Vietnam. The "American War" room after the "French War" room had pictures of protest with signs "American (or French) people stand with the Vietnamese". My guilt left me then.  I suggest Hue (best food in Vietnam according to Vietnamese), Hoi An and Sa Pa.  Near the DMZ, there are caves where whole villages lived underground for years during the war.  Have not gone there yet.  Anyway, you should go.