
Nuju jumping from a Knowledge Tower
The Knowledge Towers were various of different towers, and they were located in Ko-Metru.
Their purpose was to act as a place for Ko-Matoran Scholars to work and study.
History[]
Nuju found his Toa Stone in the Knowledge Towers.
Also the Ko-Metru Great Disk was found in an icicle on a Knowledge Tower.
The Toa Hordika traveled to a Knowledge Tower to search for the Makoki Stones for Rahaga Norik,
Creation[]
Knowledge Towers were grown by tossing a knowledge crystal (the size of a Matoran's hand) into a special cradles located in various spots in Ko-Metru. The crystal then grows in a rapid pace until it stands along the older towers.
Tower layout[]
Each tower contained living quarters, libraries, observatories, special storage areas, and laboratories.
Appearances[]
- Comic 16: Toa Metru! - First appearance
- Comic 17: Disks of Danger
- Comic 20: Struggle in the Sky - (Mentioned only)
- BIONICLE 2: Legends of Metru Nui
- BIONICLE Adventures 1: Mystery of Metru Nui
- BIONICLE Adventures 2: Trial by Fire
- BIONICLE Adventures 3: The Darkness Below - (Mentioned only)
- BIONICLE Adventures 4: Legends of Metru Nui
- BIONICLE Legends 2: Dark Destiny - (Mentioned only)
- BIONICLE Legends 8: Downfall
- BIONICLE Legends 9: Shadows in the Sky - (Mentioned only)
- Nuju's Toa Metru Mini Promo CD
- Birth of a Dark Hunter - (Mentioned only)
- BIONICLE: Metru Nui - City of Legends
- BIONICLE: Rahi Beasts - (Mentioned only)
- BIONICLE: Encyclopedia
- BIONICLE: Encyclopedia Updated
- Search for Keetongu - (Non canon)

Ko-Matoran working in the Towers
Trivia[]
- Frost Beetles tried to force their way into the Towers, eating some of the Memory Crystals stored there.
- Crystal Climbers nested in the Towers permanently after the Great Cataclysm.
- Prior to becoming a Toa Metru, Nuju also worked in a Knowledge Tower.