Menlo Park, CA

Menlo Park anchors Silicon Valley along Highway 101, about 35 miles south of San Francisco and 20 miles north of San Jose. The city sits between Palo Alto and Atherton on the Peninsula, with Caltrain connecting it to both San Francisco and the South Bay. El Camino Real runs through town as the main local route, while Route 84 heads west toward the coast. Facebook's headquarters dominates the eastern side of town, marked by its giant thumbs-up sign that's become a Silicon Valley landmark.