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. Tucson Sidewinders Baseball Aug. 29 - Sep. 1 The Tucson Sidewinders Minor League Baseball team hosts the Salt Lake Bees in four games over Labor Day weekend at Tucson Electric Park. Promotions include Fireworks Friday, Toros Hat Giveaway, $1 hotdogs. 2008 Hoco Fest Aug. 29 - Aug. 31 The Hotel Congress presents fourth annual "green" music festival, with more than 40 great regional and national acts on three stages in Downtown Tucson 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. Grape Expectations Fundraising Event Sep. 26 La Encantada shopping center courtyard is the setting for a fundraiser for the Ronald McDonald House at which guests sip fine wines from local distributors and savor delectable fare from local restaurants, with live music and a silent auction. Up With People Show Sep. 27 Up with People, an international nonprofit that develops global citizens through servant leadership and the performing arts, presents a high-energy concert by a cast of college-age singers and dancers from around the world. Rex Allen Days Oct. 2 - Oct. 5 The 57th annual celebration honors the late Rex Allen, Willcox's own silver-screen cowboy. Activities includes golf tournament, parade, country fair, rodeo, turtle race, softball tournaments, cowboy dances, and a county music concert. Traditional American Indian Feast Oct. 4 Traditional foods of Native American tribes from throughout the United States, ranging from buffalo to prickly pear, and live entertainment are featured at dinner served under the stars.