I regularly drive past this location, but only this spring did I notice that something else probably used to be here, namely a house. I noticed two lines of daffodils. The simplest explanation to me is that these flowers used to line a walkway. And what would a walkway be doing in the middle of a field? Nothing. There probably used to be a house here. The rest of the year one would never notice anything amiss.
I wonder how many other absent houses are only exposed by spring flowers.