Teen Workshop 33623 Mission Blvd, Union City, CA94587 It's hard to miss the Teen Workshop as you drive down Mission Boulevard. The vibrant building pops out with its all-over…More Native American themed artwork, which features a mural of Quetzalcoatl and other native deities painted by local community members. Inside, middle and high school students can learn how to build and repair bikes, screen print t-shirts, make signs, woodwork and make videos. Computer graphics and art classes are available upon request. Due to budget cuts, operation hours have been reduced to five hours a week.