When the staircase was installed, there was still enough space on this floor for an additional room: the mezzanine. A bedstead can be seen through the window, although this room was probably used for living and working, as well as sleeping.
Nowadays, hundreds of museum visitors use this staircase every day. In the last century, around 1.2 million visitors must have passed this way, causing some serious wear and tear to the stairs. For this reason, some of the steps were fitted with new planks; the original steps have now been partly made visible and the central section of each reinforced with new wood.