Some say there is some kind of magnetic force field going on there that causes strange phenomena, others say it is nothing more than optical illusions. Either way, I found it fascinating.
Even Einstein weighed in with his opinion on the Vortex.........."Albert Einstein developed the second theory about the VORTEX. He thought the phenomenon was more than just optical, that it was something we could also feel. Because the VORTEX actually expands and contracts as much as 19 inches several times daily, Einstein thought a persons molecular structure also expands or contracts as they walk through the area, keeping the same proportions as before."