Star of David over Dublin.
Ulysses Project

I knew as I was writing away that Joyce had to have imposed a Star of David over the City of Dublin. It made all the sense in the world to me. I finally found the points, Molly told me almost near the last page. The points are the places the Blooms' lived, plus the upper right point, North Richmond Street, where the Joyce Family lived on the eventful day of June 16, 1904. The Map and Key to the Map is Part Two of "The Key to the Poles."