Okay, I was messing around in spectator mode then I saw weird generations happening within Minecraft. One of them, is a flower, mushrooms, and grass spawning in caves, in a one-block space, which is oddly weird. The next screenshot is a broken dungeon because they're entirely covered with stone, and the only blocks they left are the chests and the spawner. There are also broken mineshafts and spider spawners too. However, the only weird thing here is that the fences don't connect, and for the spider spawner, well they left the cobwebs behind.