Yet another non-Euclidean space in the city; the ground floor is also the second floor, except for where it’s the first. The stairs do not connect the floors in a consistent manner; go up one floor from the first and now you’re on the third. The fourth floor extends through the whole building and yet the elevator doesn’t reach it, until you try (and fail) to find your way there with the stairs. And when entering it on the fourth floor, you are likely to find someone who is going from the second floor to the basement – and this is their shortest route.
Submitted by Fluffy.