Brestyan's American Gymnastics Club 13 Ray Ave, Burlington, MA01803 Brestyan's American Gymnastics Club is a children's gymnastics training facility located on Ray Avenue in Burlington. It…More is one of the nation's best gyms, known for excellent, professional training. It trains not only athletes serious about professional gymnastics, but others that want to participate for fun and exercise as well. World champions have trained at Brestyan's including three-time World Vault Champion, Alicia Sacramone. Children may begin taking lessons once they are of walking age.