When space it tight, sometimes you just have to be a little more ingenious with the details. For instance, check out this built-in cabinet that also houses a stair:
Built by Jacobs Fine Construction, this winder stair really takes up little more space than a spiral stair. It requires only a small opening in the ceiling and includes storage beneath it.
Granted, this looks like one steep step, but we love the obvious precision with which it was designed and built to fit in a small space.
Image: Jacobs Fine Construction