OK, it's not Disneyland, and it can be difficult to get to, but it's one of the quirkiest, yet still highly educational, 'parks' out there. The very fact that you get to go around on your own makes this highly unique. (Well, go around on your own legally; the legally is the unique part). You can also visit the sublevel parts, so bring a flashlight. I would have loved to have gone on an organized tour as well (and supposedly there is also a cell phone tour that is free). Entry to the park is free, and it is a far from dull or usual experience. If you don't know what is waiting for you there, just imagine the giant pig iron blasting furnaces of the modern industrial movement closing down and everyone walking away, except they didn't tear down the plant. That's what happened in 1971, after decades and decades of use. Now it's a monument to Birmingham's past and a relic of America that we rarely really get to see and explore upclose. Take the opportunity if you find it nearby!
If you own or manage Sloss Furnaces National Historic Landmark, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.