I'll expand on one thing diabolik said... everything in downtown Baton Rouge from the Centro up to the Capitol (the walls being in there) is fucking amazing. Baton Rouge is one of the best cities I've ever skated in... the Centro is/was kind've like Louisiana's own EMB, Sal Barbier's got some stuff he's done there over a decade ago that's still legend shit. Also, downtown BR is always changing, and its been getting new shit to skate consistently.
Right next to the actual downtown is the Cat Banks, which has been a solid skatespot since I was cruising over the hips there before I was a teenager... now it has some new DIY concrete, ledge and flatbar stuff, so it's even better.
Our Dreamland park is my default place to skate, and I love it because that thing's there because of work some of us did with the Louisiana legislature, and because of the efforts of my best friend and a few others on a local city council level. The park has completely altered the skating here. For years there were 4-6 of us that skated together, hitting what we had, now we've got an amazing place and you can easily scrounge up a dozen or more people to go session with if they're not already there.
Another hat tip to the Brooklyn Banks... when I went a few years ago, they had an angle-iron edged box at the very top of it, and that shit was fun as all hell. The column is fucking great too... just wallying off it into the bank is fun for days.
FDR: The big over vert pocket, the big wall next to it with the burrito thing sticking out, the line up of round bowls, the big column, and even the little mini ramp over there are each classic. The concrete boobs are fun too.
New Orleans: the white jersey barrier wall right next to the ferry landing at the River Walk. It's not an epic spot or anything, it's just a little concrete wall that you can ollie over from one side, ride like a ramp from the other, and it can be treated like a rough ledge as well. Diabolik mentioned the pancakes too... never skated anything like 'em. Tons of stuff has gone down there, and they're one of the most unique places ever.