This document discusses engaging youth in STEM through afterschool programs. It imagines a place where youth can learn and have fun solving real-world problems in teams. Effective afterschool STEM activities gain new knowledge, apply existing knowledge creatively, and work towards goals in a group. Such programs can promote science learning, youth development, and career opportunities to help underrepresented groups. Hands-on, project-based learning outside the classroom can spark interest in science and help youth discover their potential.