Secret Basement
It’s not uncommon to see something like this in horror movies or thrillers – bookshelves that spin and take you to some sort of secret room, pulling knobs to open secret passages, and other spooky stuff like that. This staircase hides the entrance to some sort of basement, and it’s cool because it’s right there, but you probably wouldn’t notice it if you weren’t looking for it.
We don’t know who or what this person is hiding from or if the person is just using this as safety measures in case of – what? All we know is that it can be a useful idea, and it was executed well. We could be climbing these stairs every day and never know that there is a secrete basement underneath us.