El Dia de los Muertos is a holiday in which the dead are honored with parties, food, drink and music, all of which those who've passed are invited to join in. El Dia de los Muertos originated in Mexico and is now celebrated around the world, including in the Treasure Valley. At 11 a.m., Idaho Smart Growth is hosting a Neighborhood to Market bike ride to the newly opened Boise International Market, idahosmartgrowth.org/N2M. Celebrate Dia in Downtown in Nampa with traditional music, dancing, food, art and attire. 5:30-9:30 p.m., FREE, 12th Avenue and First Street. Boise State University has an exhibit celebrating El Dia de los Muertos, sponsored by Multicultural Student Services, the Student Involvement and Leadership Center, and Traditional Multicultural Expressions, up through Friday, Oct. 31 in the Student Union Building Atrium, sub.boisestate.edu.