The Orbs All Aligned With Architectural Edges

Below are five photos I took at Grand Central Terminal on April 17, May 8, May 15,  May17, and May 30 (in 2017).  In each photo we see a mysterious orb that has aligned with an architectural edge in the station.  I get this type of thing much, much more frequently than I would expect to see by chance (see here for hundreds of examples of aligning orbs).