(SFMOMA) The San Francisco Museum of Modern Art, designed by Swiss architect Mario Botta, opened to great acclaim in 1995. Its permanent collection is particularly strong in American 20th-century sculpture, painting, photography (including works by Andy Warhol, Jackson Pollock, and Georgia O’Keeffe) and multimedia installations. A three year, multi-million expansion plan completed in 2016 has doubled the gallery space and expanded the collection, making it one of the greatest contemporary art museums in the world.