Six Flags is prominent by the roadside coming into New Orleans on I 10 from the east. It has been abandoned since Katrina, forever held up in courts by high stakes insurance and ownership questions. Even the most recent plans have crashed.
You can find lots about it via Google on Wikipedia and elsewhere. The following site shows truly sad, even macabre shots of damaged, fallen ornamentation. It is a cartoon of what happened to so many of the people in NOLA.