GreenSTEMs designed and built Club125 to be a safe, fun, and family-friendly facility, where the club engages the community in activities of the mind through one-on-one tutoring, seminars, workshops, science fairs, technology projects, and social events.

The club has labs to support computer science, microelectronics, and robotics, and has large work areas for presentations and workshops, and for working on projects in a variety of materials.

Club125 is located on Roosevelt Center Plaza in historic Old Greenbelt, at 125 Centerway, Greenbelt MD, 20770.