You need to know parkour to enter
Here, we have yet another inaccessible door that someone decided to build without question. However, if you know parkour, then you can probably make your way up there. Heck, you can probably lift yourself up with your arms, but why did they place the door there in the first place?
We know what you’re going to say: “they’re going to put a staircase that leads up to the door later on!” Well, that seems reasonable, until you realize that right under the door is a window to the underground floor. So, are they just going to block the window permanently or what?