Memory Lane

We went out for a walk because, although the weather was cool and threating rain, we didn't want to go stir-crazy inside and a good windbreaker was enough to keep at least the trunk warm. We have taken the same walk 100's of times and walked over this path without ever looking down.
It occured to me today that I couldn't think of anywhere else in town that still has a sidewalk made of blocks of slate. Now sidewalks are all concrete and without potholes. Slate is smooth on bare feet but is slippery when wet.