A sculpture named "Annular Eclipse" was installed in the open plaza next to the 560 Mission Building. Moved by wind, it was composed of two circles that would occasionally eclipse each other. The plaza was always open to the public and featured a small pond and grassy levels next to a bamboo grove.

This sculpture was very tall. At almost 30 feet (9 meters), it towered over the plaza.

Behind the sculpture was a tall and wide grove of bamboo. When the wind blew, the to rings of the sculpture would move and the bamboo would sway behind it.

The base of the sculpture was set into the center of a shallow pond. Built of stainless steel, the sculpture appeared as fresh that day as it did 10 year before.

The two pivots around which the two circles would rotate. They appeared stoutly constructed and well lubricated. The statue moved in compete silence.

The two circles viewed edge on with a tall building behind. This view showed the spacing between the two circles.

The lowest of the three vertical shafts that held up the two circles. Notice how the second shaft was smaller and was inserted down into the first shaft and welded in place.

The middle of three shafts ended just above the edge of the circles. It had the final and smallest shaft inserted down inside it and welded in place.

The topmost of three shafts ended at the horizontal bar that supported the two circles.

Viewed from its side the two circles were moving slowly back into alignment to form the eclipse.

An overview of the plaza with the Annular Eclipse sculpture in it. Notice that the plaza extended all the way back to the alley behind and was lined with a lush growth of tall bamboo. Cars and bicycles were included in the photo for scale.