When Hurricane Katrina hit in 2005, one of its victims was Six Flags New Orleans, which was flooded for a month after the storm. The park has been closed indefinitely since then, but urban explorers will still venture in.
Flickr user Brynne has captured dozens of shots of the rundown park, which opened in 2000 as Jazzland. Here's how Brynne describes the experience of being in Six Flags on November 13, 2009:
[We] took a gamble and decided to go. Only, to our surprise, it was relatively easy to get in, completely vacant of any guards or watchmen, and we were pleasantly greeted by two other groups of young guys who were just exploring the park for fun. We stayed for a couple of hours and had a blast. It was an unusual feeling being in an entire rotting amusement park (almost) completely alone
So far, the only ride that's been salvaged was the Batman: The Ride rollercoaster, which now resides in Six Flags Fiesta Texas under the name Goliath — you can see the space where the ride once stood. Another unused family coaster, the Road Runner Express, is expected to debut at Six Flags Magic Mountain in 2011.
[Final Joker photo seen on Slightly Warped. Thanks for the heads up, Swenson!]