Just as the title says. It can be one that we've already seen in the comics, TV, or movie. Or it can be one that you've come up with and wish they'd do. Or a mix of the two options. Feel free to make the post as detailed or short as you like. If you're going for detail, then what's the architecture like? Where's it located? How does Superman get in? What's inside? Zoo or no? Robots? So yeah, guys, have some fun with it lol