My wife and I are going to New Orleans in March (right after Mardi Gras) for a wedding. We will be staying close to Bourbon Street and will likely have 1 day to ourselves to do something not related to the wedding. We'll be hitting up Bourbon Street as part of the wedding reception but was wondering if anyone had suggestions of a "must do" on that one day we have. We'll have a car but would probably not want to travel too far away from our hotel unless it's something really cool.