I am curiously drawn to this thread's subject when out and about, although I'm not that interested in stairs! But now, as I wonder about, there's always a bit of my sub-conscious looking out for stairs - interesting geometry, social meaning, etc. Thanks, OP!
Hi, thank you for your friendly comment, @goldtop. It is the same with me. The threads I am active in guide my interests, and I have seen buildings for the first time in cities I have known for decades ... ---
Hi, Merry Christmas to You and Yours !!! --- In Manchester/UK :
(I also found the stairs that Sean Tucker sometimes uses in his street photography, but couldn't get an interesting shot because of parked cars and a shortage of people - maybe the flu thing is making people stay away from big cities?)