Known to its residents as "America's Finest City," San Diego has a mild, inviting climate and stunning coastal scenery. San Diego Then and Now looks at how the city developed from a small village settled by early Franciscan missionaries and the Spanish military. It came under U.S. rule in 1846, but it was not until 1867 when San Francisco speculator and businessman Alonzo E. Horton acquired 960 acres of waterfront land and promoted it as "New Town" that San Diego really began to take off.

San Diego Then and Now pairs archival photographs with modern views of the same scene to illustrate the city's growth since these humble beginnings. It shows how the city's architecture still reflects and preserves its Spanish heritage but also incorporates modern glass skyscrapers and Victorian mansions.

Sites include: Horton Plaza, U.S. Grant Hotel, Stingaree District, Speckels Theatre, Fifth Avenue, Seaport Village, Embarcadero, Star of India, Coronado, Hotel del Coronado, Santa Fe Depot, Carnegie Library, El Cortez Hotel, Long-Waterman Mansion, Villa Montezuma, The Prado, San Diego Zoo, Old Globe Theatre, San Diego High School, Hillcrest, City Heights, Kensington, La Casa de Estudillo, Casa de Bandini, Whaley House, Junipero Serra Museum, Ballast Point, Point Loma, Ocean Beach and Pacific Beach.