Take a nice air conditioned gray line tour of the city. You'll learn more in that time about the history of the city, how they manage being below sea level and many other things. The cemetaries are quite interesting with many different customs than those of us above sea level never have to consider. Listen to jazz on Bourbon street, go to Cafe Du Monde, the aquarium was nice but the zoo was terrific. I just loved NOLA and can't wait to return.