How to make the "stairs" FUN!

In your apartment building do people use the elevator or escalator over the old fashioned stairs?

We all know the stairs are better exercise, but sometimes we need a little more motivation or invitation for fun to get us out of the rut we are in. Here is brilliant idea that is FUN and actually worked:

                                                                 Piano stair case

Have another idea to make stairs interesting, let me hear your ideas?

                                                           Stairway to heaven 3D Art

Creative ideas in the places we live. Feel free to share your ideas here.