Here are some recent stairs that caught my eye.
These are the side stairs within the Winter Palace of Queen Mother Emma of the Netherlands, which I visited because it houses the Escher Exhibition. These are not the grand stairs in the centre of the house but the more practical side stairs. Still pretty neat.
And this is looking down the elegant central stairs which take the long way up!
By way of contrast these are the stairs for accessing the public shelves at UT Delft library. They let all of the light through and blend into the overall structure.
Whilst at Leiden University Library these stairs have more rugged and substantial feel to them and draw the eye.