Naco Nocturnes, a sound, light and painting installation at the deYoung by artist Armando Rascon, is worth the price of your admission ticket alone, never mind the Gee's Bend and Chicano exhibitions (both of which we also visited and are amazing, and which we will be blogging shortly). The subject of the installation is the US/Mexico border, and how it "functions as a site of cultural definition rather than political division."
If you visit the museum, spend some time with this one. Each graphic, exuberantly-colored circular painting (Fall color contestants, take note), which the artist told us are made to look like they're painted on tortillas, is a subject or symbol of cultural significance on one or both sides of the border. The border fence looms ominously to the left (shadow visible in the first image), while the tortillas practically pulse with symbols and stories from the many lives it divides.