The Towers of Thought were special structures in Ko-Metru intended for scholarly projects requiring absolute silence. A squad of Vahki Keerakh was always in the area to insure that the work of the Matoran in the Towers of Thought was not disturbed.1
Notes
The Knowledge Towers and Towers of Thought were located in the center of Ko-Metru.2, 3
The Towers of Thought were a special class of Knowledge Tower intended for the most important research projects in Ko-Metru. Absolute silence was required of all who entered these structures. A Vahki squad was always on patrol nearby to apprehend anyone who disturbed the work of the Ko-Matoran in these towers.4