When Olympian Shannon Miller endorses your facilities, you know you're doing something right. Miller gave TNT Gymnastics and Fitness the nod thanks to owners Devon and Denise, who instill their athletes with determination and life skills along with gymnastics techniques. "Starting gymnastics at a young age gives your child the benefits of strength, flexibility and body awareness," Miller shares. Those benefits are found in classes that teach everything from cartwheels to the tumbling skills needed for collegiate scholarships.