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. 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. Songs for a New World Aug. 29 - Sep. 7 Arizona Onstage Productions presents Jason Robert Brown's Songs for a New World, a music and theater revue that explores the world of change – in life, in family, in love – through music and character. 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. 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. Bead-a-Thon Sep. 12 - Sep. 13 Watch 50 flameworking artists create unique glass beads, to benefit children coping with serious illness (as part of nationwide "Beads of Courage" program), at event featuring bead sales, bead-stringing demonstrations, a performance by The Tryst, and a gala at Elle restaurant, Sept. 13. 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. Benefit Golf Tournament Sep. 19 Golf tournament played on the outskirts of scenic Green Valley, with raffles and awards luncheon, for the benefit of Nicolas Romero, Tohono O'odham Nation Police Officer seriously injured recently in hit-and-run auto accident. Register by Sept. 5. Call Fernando Campa, 520-850-6611. 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. Children's Social Powwow Oct. 4 Children lead traditional celebration of Native American culture, featuring inter-tribal singers, dancers, and drummers from across the United States; native foods; and arts and craft vendors. Fall Plant Sale at Tucson Botanical Gardens Oct. 4 Tucson Botanical Gardens hosts autumn sale of cacti, trees, shrubs, herbs, and other plants suited to Tucson's climate. Tucson Meet Yourself 2008 - 35 Years and Still Cooking Oct. 10 - Oct. 12 Celebrate the richness and diversity of the living and traditional arts of Southern Arizona's folk and ethnic communities. Ethnic food, performances and folk arts demonstrations, Low Rider Show, "Meet the Street," "Meet the Cooks," "Meet and Greet," and more. Fun for the entire family. El Presidio Park, downtown Tucson. Tucson Film & Music Festival Oct. 10 - Oct. 12 Upstairs Film presents the 4th Annual Tucson Film and Music Festival featuring a plethora of film and music events staged in Downtown Tucson. Plant Sale at Tohono Chul Park Oct. 10 - Oct. 11 Tohono Chul Park hosts a sale of plants that are native to the Sonoran Desert or arid-adapted. Cochise County Cycling Classic Oct. 11 Diamond Ventures presents 20th anniversary competitive bicycling event, with 252-mile challenge and 157-, 92-, and 45-mile rides starting in Douglas.