Strange Striped Orbs Float Mysteriously

At Grand Central Terminal in New York there are some unusual windows shown in the photo below (from March 7, 2016), which also shows a mysterious bright orb appearing near the windows.

The photos below (taken on March 25, 2016 and March 30, 2016) show two orbs floating near these windows. What is very strange is that both orbs have the same type of feature -- what looks like a kind of stripe.

I have six other photos of other striped orbs like this in the air, some of them in the sky.  I also have 20 photos of striped orbs in water drops.