Dig: Prehistoric Gardens May. 1 - Sep. 30 Tucson Botanical Gardens offers self-guided tours through its model of an ancient and alien world of pre-historic-era continents filled with bizarre plants and ginormous creatures. Summer Movies at Fox Tucson Theatre Jun. 1 - Aug. 31 Classic movies for the entire family are shown at Downtown Tucson's historical Southwestern Art Deco movie palace. Contact theatre for schedules. Summer Saturday Evenings Jun. 7 - Aug. 30 Arizona-Sonora Desert Museum opens after sundown so visitors can enjoy the sights, sounds, and smells of the Sonoran Desert at night, on Saturdays. Summer of Enchantment Concert Series Jun. 14 - Aug. 30 La Encantada shopping center presents a summertime Culinary Concert Series on Saturdays that features food from the center's restaurants and live music by local bands. Outdoor Movies at Cinema La Placita Jun. 19 - Oct. 30 The Loft Cinema at La Placita presents its "Shot in Tucson" film series featuring movies that were filmed, entirely or partly, in the Tucson area. Series runs Thursday evenings, May through October. DiscoveryDays at Mt. Lemmon SkyCenter Jul. 19 - Sep. 21 Fun and educational adventures in science presented weekends by the University of Arizona and the UA College of Science at the new SkyCenter atop Mt. Lemmon. Tucson's 233rd Birthday Aug. 1 - Aug. 31 August is Tucson's birthday month and Tucsonans are celebrating the 233rd anniversary of the city's founding on August 20, 1775, with a variety of events and activities. Brewery Gulch Daze Aug. 30 Chili cook-off, bed races, and kids’ carnival in Bisbee’s former red-light district. Sonoita Labor Day Rodeo Aug. 30 - Sep. 1 Old-West rodeo, with timed events, barrel racing, a wild-horse race, and team roping events, and mutton busting and pee-wee events for little cowpokes. Fiesta de San Agustin Aug. 30 A celebration of St. Augustine, Tucson's patron saint, including the Mass at St. Augustine's Cathedral, a procession to Armory Park with a statue of the saint from the collection at Arizona History Museum, and an outdoors festival. Some LIke it Hot with Sexteto Rodriquez Aug. 30 Tucson Jazz Society presents Cuban-American percussionist and composer and Grammy nominee, Sexteto Rodriguez and his blend of Latin rhythms and Jewish melodies at JW Marriott Starr Pass Resort/Spa. Rendezvous of the Gunfighters Aug. 30 - Sep. 1 Old Western gunfighter groups from around the U.S. gather in Tombstone to stage gunfight reenactments, compete in most-authentic costume contest and Sunday parade. Apple Harvest Festival Aug. 30 - Sep. 1 On Labor Day weekend, Apple Annie's Orchard celebrates the peak of Southern Arizona's apple season with various activities, including apple picking in the orchard. Labor Day Jazz Concert Aug. 31 Tucson Jazz Society presents Joyce Cooling Group with Matt Marshak in a performance of their award-winning jazz sounds at Loews Ventana Canyon Resort Ballroom. Saguaro National Park Labor Day Run Sep. 1 The Southern Arizona Roadrunners presents an early morning run through the scenic cactus-forest loop in Saguaro National Park East in the Rincon Mountain foothills, including 2-mile and 8-mile courses. Fernando Gallego and His Workshop: The Altarpiece from Ciudad Rodrigo Sep. 4 - Mar. 22 The UA Museum of Art presents this exquisite group of Spanish medieval panel paintings from the altarpiece of Ciudad Rodrigo, which comprise one of the most important groups of paintings produced in late 15th-century Spain. Club Congress Moon Bash Sep. 5 The historic Hotel Congress hosts an all-ages family concert with local bands and food at the Cup Cafe to raise funds for the restoration of Valley of the Moon, Tucson's original fairyland/fantasy park/garden, built in 1923. Primavera Cooks! Sep. 10 Cuvee World Bistro restaurant hosts a multi-course gourmet dinner as part of the Primavera Cooks! culinary series, which feature a meal prepared by community members, under the tutelage of some of Tucson's finest chefs. SAHBA Carnival de Golfe Sep. 12 Southern Arizona Home Builders Association presents a charity golf tournament including lunch, silent auction, and raffle prizes at Omni Tucson National Golf Resort/Spa. Primavera Cooks! Sep. 14 Kingfisher Bar and Grill hosts a multi-course gourmet dinner as part of the Primavera Cooks! culinary series, which feature a meal prepared by community members, under the tutelage of some of Tucson's finest chefs. Tucson Bridal Show Sep. 14 A wedding-planning event featuring an exhibition of the latest wedding ideas, products, services, fashions, and information. Primavera Cooks! Sep. 17 Jonathan's Tucson Cork restaurant hosts a multi-course gourmet dinner as part of the Primavera Cooks! culinary series featuring a meal prepared by community members, under the tutelage of some of Tucson's finest chefs. Oktoberfest on Mt. Lemmon Sep. 20 - Oct. 12 Enjoy German culture in the pine and aspen forest at Mt. Lemmon Ski Valley. Eat at the event or dine at a restaurant on the mountain. Event occurs last two weekends in September and first two weekends in October. El Tour 10K & 5K Run/Walk Sep. 21 Diamond Venture's 11th annual El Tour 10K and 5K Run/Walk traditionally kicks off the El Tour event season. Proceeds from the event go to the Ben's Bells project, a community effort to inspire intentional acts of kindness. Tucson Symphony Orchestra 80th Season Opener Sep. 25 - Sep. 26 Tucson Symphony Orchestra Music Director George Hanson opens the 80th TSO season with a classic concert featuring concertmaster/violinist Steven Moeckel as well as the release of the TSO's first CD, recorded live in Tucson.