The Balboa Park Carousel in Balboa Park is a c. 1910 menagerie amusement ride located near the San Diego Zoo. Built by the Herschell-Spillman Company, the carousel came to the park in 1922, but was not placed in its current location until 1968. Designated under Criterion A as a special element of the city's social development, the carousel is a 20th-century symbol of relaxation and recreation, and the only remaining carousel from this leisure period in San Diego. Also designated under Criterion C, the carousel retains a high level of integrity as a "golden age" amusement ride with exceptional craftsmanship, including 51 intricately carved animals and chariots, hand-painted imagery, an operable band organ, and an original General Electric Company Motor. Designated under a third criterion, the Balboa Park Carousel is also significant under Criterion F as a contributing resource to the Balboa Park National Historic Landmark District. It was a notable park attraction during the 1935-36 California Pacific International Exposition. Photo courtesy Friends of Balboa Park

3814 Centre Street in Hillcrest is a 1926 Mission Revival style apartment building. Designated under Criterion C for exemplary architecture, notable features include the flat roof with Mission-shaped parapet, smooth stucco exterior, recessed porch and balcony with decorative arches, tiled porch floor, and single and tripartite double-hung wood windows. Photo courtesy California Historical Resources Inventory Database (CHRID)

2354 Plum Street in the Loma Portal neighborhood is a two-story Streamline Moderne style home with Minimal Traditional elements. Built in 1938, the house is designated under Criterion C for its architectural design. Streamline Moderne features include the asymmetrical facade, square massing with curved corners, stucco exterior, horizontal speed lines, steel tube horizontal railings, and divided-light steel and glass block windows. Minimal Traditional elements include the low-pitch hipped roof, enclosed eaves, simple entry porch, double-hung wood windows, and louvered wood shutters. Photo courtesy Redfin.com

9380 Lemon Avenue, atop Mt. Helix in La Mesa, is a c. 1930 Jennie C. Berensen House was designed in the Spanish Colonial Revival style. The architect is unknown. It is designated under criteria V(b)(1) for its association with development patterns of the Casa de Oro-Mt. Helix community in the Mediterranean period (1890 to the present). The period of significance for the house, which was expanded or altered twice into a sprawling compound, is 1930 to 1977. Also designated under V(b)(3) for its distinct expression of the Spanish Colonial Revival Style, the house has many character defining features. Among them: a textured stucco exterior; a six-plank wood front door, tripartite focal window; wood-framed casement and Chicago style windows; red clay tile roofing; overhanging eaves with curved exposed tails; gables with decorative stucco vents; wrought iron wall sconces, door hardware, and handrails; and a flagstone-paved courtyard. Photo courtesy Redfin.com