Politics: Outside of Convention Video featuring the Reverend Jesse Jackson, composer David Amram, writer John Nichols, and various Denver musicians screens throughout the city, raising questions of American democracy through music, speeches, and community. Colorado Convention Center, 700 14 th St., http://denverlibrary.org/programs/fresh/index.html. Times vary. Wellness: Yoga Health Festival at Air Forest A festival of all things yoga--workshops with master instructors, green vendors, medical practitioners, and live music with soul and acoustic performer Justin Nozuka. The Pavilion of Public Discourse at City Park, Colorado and Montview boulevards. www.dialogcity.org. Times and prices vary. Through Aug. 25. Environment: Green Frontier Fest and Green Energy Station This celebration of sustainable living brings together a farmers' market, eco-carnival games, live music, and presentations from speakers like green-living advocate Van Jones. Denver Performing Arts Complex, Sculpture Park, 14th and Curtis streets, www.greenfrontierfest.com. 10 a.m.-6 p.m. Through Aug. 28.

Art: Manifest Hope Graphic artist Shepard Fairey, MoveOn.org, and other partners present the art (sculpture to fine art to street art) that has defined the 2008 presidential primary campaign. Andenken Gallery, 2990 Larimer St., www.manifesthope.com. 10 a.m.-5 p.m. Through Aug. 28. Shopping: Denver Marketplace 2008 This outdoor market showcases Colorado products. Civic Center Park, 100 W. 14 th Ave. Pkwy., www.denverconvention2008.com. 10 a.m.-4 p.m. Environment: Partly Sunny Architect and designer Charlie Cannon partners with the Rhode Island School of Design in a series of installations and events that address climate change. Denver Pavilions, 16th and Welton streets, www.dialogcity.org. 11 a.m.-4 p.m. Through Aug. 29. Religion: Interfaith Gathering Community and party leaders join clergy from various religions as a part of the Democratic Party's Faith in Action Initiative. Wells Fargo Theatre, 700 14th St., www.demconvention.com. 2-4 p.m.