(Oldenburg distinguished the two pieces as "one light and floating, one heavy and fallen, each asserting what they're made of.")
For Carlos Basualdo, the museum's contemporary art curator and curator for the sculpture garden, the Oldenburg marks perhaps a transformative moment in the evolution of the outdoor space.
"It has the potential for becoming a signature piece," he said. "The Oldenburg plug stands out - the materials, the image. I think the whole thing works very well together."