A single, lopsided coast redwood standing on the banks of San Francisquito Creek behind the Palo Alto Caltrain station. It's the oldest landmark in town by an enormous margin — roughly 1,067 years at last ring count — and the silhouette has appeared on the city seal since 1894.
The tree had a twin until a storm broke it in half in the 1880s; the surviving trunk leans markedly to one side. A short trail leads down from El Camino Real to the base. The Stanford band's mascot is a costumed version of the same tree, complete with a face — a piece of Bay Area absurdity worth knowing about.