With no lifts or escalators, the tower is essentially a forty-five-story walk up. You’ll find seniors or those less physically-abled on the lower floors, and the young and healthy near the top. Public spaces like this stairwell are painted with care in order to make the tower feel more like an apartment building.

Iwan Baan takes photos of homes born from human ingenuity. See 18 of his intriguing images.