I took the train from Royal oak to Ann Arbor today and i noticed something along the way while going through the city

I am not sure how to describe this but i will try

there where streets with little to no houses left on them

the streets have sidewalks and the sidewalks have stairs that lead up to ground level [[which is considerably higher than street level) but once they get to ground level there is nothing there but grass

there are multiple sets of stairs close together, and to me that indicates that maybe at one time these stairs led to houses that are no longer there. But my question is does anyone know what i am talking about and if so are there any pictures? I would like to see how these steps led up to the houses, were there sidewalks that then led up to the house? Where the houses long and narrow because the sets of stairs appear to be pretty close together. I have never seen anything like it and I would love to see how it looked with houses

I didn't catch any street signs but all the streets ran perpendicular to the tracks and where on the south side of the tracks