Pacific Heights is a posh residential enclave known for its architecturally significant homes, including the opulent Spreckels Mansion and the 1886 Haas-Lilienthal house, a Queen Anne Victorian that’s open to the public. A pair of grassy hilltop parks, Lafayette and Alta Plaza, and the Lyon Street Stairs provide sweeping views of the bay. Fillmore Street is a lively hub with high-end fashion boutiques and cafes.