Italian architect firm Storage Associati has designed a unique staircase that “disappears” when looked at from certain angles.

It is surrounded by metal planks of different lengths and sizes, which are positioned vertically around the main staircase itself. 

Depending on where you are looking from, it can appear to be a normal staircase or a closed space that completely hides the stairs. 

Check out the elusive staircase below:

[via Neatorama, images from Storage Associati]