When I saw this today, I wondered how many people had looked at it but did not see what I did. This is the pool of a large fountain. This part is far enough away from the fountain to not get the spray, but still close enough to have small ripples. The skylights in the ceiling combined with the gentle ripples of the water created this abstract design that looked to me like liquid metal. It's amazing what is right in front of our eyes when we take the time to really look.