San Francisco Bay Area from the ISS
Here's a neat image of the Bay Area taken from the International Space Station. I particularly like the visible outflow from the receding tide through the Golden Gate as well as the visible colored salt ponds in the south bay.
In this photograph of the San Francisco Bay area taken from the International Space Station during Expedition 4, the gray urban footprint of San Francisco, Oakland, San Jose, and their surrounding suburbs contrasts strongly with the green hillsides. ISS004-E-10288 (April 21, 2002, 105 mm lens) Click on the image for full-resolution version.