It’s as though Google Maps is inadvertently preserving the house’s horrific legacy by refusing to forget, and refusing to let it disappear.
From their page:
Annotation: A closer look into the meanings and histories of everyday documents, diagrams, maps, and images.
In any case, if you're really curious you can visit the PDF directly, with no JS requirements, at https://harpers.org/wp-content/uploads/2020/08/September_202...