This is Martin Luther King's Memorial Hall. I am very touched by the fact that the documentation in it gives a very detailed account of the great civil rights activist's life story.
In memory of Martin Luther King, I've seen it in the text before.
Maybe the most beautiful feature of the Yerba Buena Park area, where you can see the waterfall from the lovely gardens in front. This is a great place for a lunch outside. Some park benches to sit on.