Until the opening of the Museum of Contemporary Art, Los Angeles in 1987 and the modern and contemporary wing of the Los Angeles County Museum of Art, San Francisco's museum tended to function as the state's flagship for modern and contemporary art. In January 1995 the museum opened its current location at 151 Third Street, adjacent to Yerba Buena Gardens in the SOMA district. Mario Botta, a Swiss architect from Canton Ticino, designed the new facility. Art patron Phyllis Wattis helped the museum acquire key works by Magritte, Mondrian, Andy Warhol, Eva Hesse and Wayne Thiebaud.