The BIONICLE universe is set in many separate locations. From the lush tropical island of Mata Nui to the teeming, industrial Metru Nui, the inhabitants have lived in a wide variety of settings. They dive to the depths of Mahri Nui and soar to the heights of Karda Nui, and even scratch out a precarious living on rocky Voya Nui. Read more about these separate areas in the BIONICLE universe!