SFMOMA is planning a major expansion to the 15 year old building designed by Italian architect Mario Botta. The main lobby of the building features an oculus skylight with an open stairwell ascending the oculus. The idea of a round skylight was a major theme of Botta's work during the 1990's and several of his buildings featured a variation of this idea.
Church of San Giovanni Battista in Switerland
Botta's Church of San Giovanni Battista in Switerland shown in this drawing to t he left shows a how the same idea was applied to a church.