You never know when you might stumble upon an interesting image. The only reason I can think that this strip of white is on this building is because of an egress stair that was taken off (for safety reasons? that building isn’t in the greatest of shape). Even that though doesn’t make sense. Why would the part of the building the stairs covered be white? Wouldn’t it be the other way around? No idea. If you know, message me. I am actually intrigued by this conundrum.