Anna Pavlova, right, mastered the art of classical ballet as a young and gifted Russian dancer. Her performances in &amp;quot;The Dying Swan&amp;quot; captivated the world. Diana Vishneva, left, is another Russian ballerina who stormed the world with her talent. A principal dancer for the Mariinsky Ballet in St. Petersburg, Russia, and the American Ballet Theatre, she has also established the Diana Vishneva foundation to promote the art form.