True to its name, this hilltop park offers splendid vistas over the city to Golden Gate Bridge and the Bay. Founded in 1867, this is one of the oldest city parks – and it's ringed by stately, century-old California oaks. Brave trails weaving uphill through the park, then take Buena Vista Ave West downhill to spot Victorian mansions that survived the 1906 earthquake and fire. Note that after-hours boozing or cruising here is risky, due to minor criminal activity.