After completing a chapter in each attraction it will give you a rating on that part of the attraction and tell you how many secrets you found/unlocked throughout that chapter. To get this achievement you will need to find all secrets and achieve a five star rating on each chapter of the attraction. To achieve a gold pin badge you will need to achieve all five stars in the attraction. To achieve a silver pin badge you will only need to achieve four overall stars (the ones to the right of the chapters) and for a bronze pin badge you will only need to achieve three overall stars. Use this guide to help with the secrets.