If you want to immerse yourself in World War 2 history, the National WW2 Museum in New Orleans should be on your list to visit. It comprises eight buildings that cover a wide range of themes — the European and Pacific theaters, the Holocaust, faith in times of war, aviation, decorated veterans, and relics that are undergoing restoration — and is associated with the Smithsonian Museum. I could have easily spent a couple of days there. The photos give just a glimpse of all I saw.
The National WW2 Museum is in the Arts district, an easy walk from the Central Business District, and on the Hop-On Hop-Off Bus line.