school stairs

our friends were playing in a concert not far from where my mum lives so we took her along to listen to it.  I couldn't get a decent photo of the orchestra , too many heads some of which I tried to remove (in photoshop I hasten to add) but then I was left with half a violin which was difficult to repair! Instead I took the stairs . Its a girl's school ,which one of my aunts went to in the 1940's, but looking at the stairs I'm wondering what they teach. A branch of Hogwarts maybe!