The Chamber of Truth was a dark room in the Piraka Stronghold with one door on it. There was a slot on the door for the Piraka to look in and question the prisoners. If they would tell a lie, the floor would shift a little so it would become at an angle eventually. Beneath the floor was a pool of lava, and if the floor shifted to a great enough angle, the prisoner would fall in.
On VNOG the Chamber of Truth was on a high peak which was impossible to climb, not in the stronghold. Also, the floor didn't shift; Vezok simply locked the interrogated up in one of three prison cells.
| Fire Regions: Mt. Valmai • Lake of Lava • Chamber of Life • Lava Reservoirs|
Water Regions: The Cape of No Hope • Lagoon Entrance • Mahri Nui (Formerly) • Voya Nui Bay
Village Regions: Matoran Stronghold • Matoran Village • The Jungle Sanctuary • Canyon Fortress
Piraka Regions: Piraka Stronghold • The Chamber of Truth • Piraka Outpost
Ignika Chambers: Staircase to the Ignika • The Zone of Nightmares • The Chamber of Death • Umbra and Protodax's Chamber • Lava Chamber Gate
Other Regions: Ring of Ice • Cavern of Historical Records • Desert of Sorrows • The Green Belt
Lake of Protodermis • Nui Caves • Stone Cord (Destroyed)