Photo date: May 12, 2017. Photographer: Mark Mahin.
The photo below shows two mysterious orbs I photographed in front of a window at Grand Central Terminal in New York.
The one on the right is positioned on the top of a ledge, just like the orb below I photographed on May 3, 2017. You can find numerous other examples in this series of orbs aligning on such a ledge or row of lights.