2347 - Staircase art

I found this first picture and wondered where it was. The best I could figure out is that it is somewhere in Munich.

That made me wonder if there was other staircase art anywhere. Hmmm where could I find..... HEY, the Internet!

Here's a staircase at the Chicago Art Institute.

Here's a partial close up. This was apparently an exhibit on the stair risers back in 2011 on religious tolerance. I found this article which explains the piece with more links.

How about the 'Stairway to Knowledge'? There were too many 'stairways to knowledge' to find out where this one is.

OK here's a staircase that looks like I built it. Apologies to the artist.

And finally just a normal cool staircase with art down the sides of it. It looks like it would be fun to run from the top down to the bottom. And is this one or two staircases?