CINCO DE MAYO May 2–4. Olvera Street marks Mexican holiday with folkloric dancing, food and Mexican fashions. 10 a.m.–10 p.m. Free. Alameda Street between Main and Los Angeles streets, downtown, 213.628.1274. Map H17

VENICE GARDEN AND HOME TOUR May 3. Self-guided walking tour of Venice homes and gardens. 10 a.m.–5 p.m. $60–$70, under 12 free. Begins at Las Doradas Children's Center, 804 Broadway St., 310.821.1857. Map M9

LOS ANGELES MODERNISM SHOW May 3–4. Celebrates 20th-century design. May 3, 11 a.m.–7 p.m.; May 4, 11 a.m.–5 p.m. $15. Santa Monica Civic Auditorium, 1855 Main St., Santa Monica, 310.458.2288. Map M8

BRENTWOOD GARDEN TOUR May 4. Self-guided tour of five private gardens. 1 p.m.–5 p.m. $25, under 7 free. Begins at 715 Moreno Ave., Brentwood, 310.820.5093. Map K8

SANTA MONICA FESTIVAL May 10. Eco-conscious, "Zero Waste" event features live performances, food booths, merchandise vendors. 11 a.m.–6 p.m. Free. Clover Park, 2600 Ocean Park Blvd., 310.458.8350. Map L9

GARDEN CONSERVANCY'S OPEN DAYS PROGRAM May 10. Self-guided tours of six private Beverly Hills and Westwood gardens. 10 a.m.–4 p.m. $5, under 12 free. Begins at Greystone Mansion and Park, 905 Loma Vista Drive, Beverly Hills, 888.842.2442. Map H11

ART & ARCHITECTURE TOURS May 17. Newly Hatched Homes self-driven tour in Venice (11 a.m.–4 p.m.) and Private Homes & Art Collections coach tour in Malibu (10 a.m.–5 p.m.). $75–$150. Venice tour: Westminster Avenue Elementary School, 1010 Abbot Kinney Blvd. Malibu tour: Frederick R. Weisman Museum of Art, Pepperdine University, 24255 Pacific Coast Hwy. 310.392.9255. Map M9

VENICE ART WALK & AUCTIONS May 18. Shuttle transport between artists' studios; silent art auction, food fair and entertainment. 11 a.m.–6 p.m. $50. Begins at Westminster Avenue Elementary School, 1010 Abbot Kinney Blvd., 310.392.9255. Map M9