Coliseum

Metru-Nui's Coliseum is the lifeblood of the city's cultural, political, and economic spheres. The Coliseum is located in the center of Metru-Nui, with a great wall around it and six massive gateways providing passage from each respective Metru. Between the wall and the central tower of the Coliseum lies a large parade grounds made of hexagonal pillars of protodermis. These pillars can be raised or lowered by a control booth in the Coliseum tower to change the terrain for different events like marathons or akalini tournaments. In the center of the Coliseum is its tower, which rises one hundred double height floors into the air with large vaulted ceilings on each. The first fifty floors are labeled Ground through Floor 50, and are public access for meeting spaces, government offices with non-secure workloads, and general spaces of cultural worship or daily life. The top fifty floors are private floors requiring vahki escort and access to visit. These contain sensitive policy offices, diplomatic floors, war rooms, and the top floors of the visitation gardens, Turaga Dume's Office, and Turaga Dume's private home.

Below the Coliseum Tower stretches several floors of prisons for political prisoners or those deemed a danger to matoran culture. These prisons are intensively secured through upgraded vahki with power nullifying abilities. Known political prisoners include Turaga Lhikan.

Public Lobby (Ground):
The public lobby of the Coliseum tower is a large circular floor with open arches on the exterior walls leading in and out of the parade grounds. During a lockdown grates fall into the open spaces to deter entry. During most daytime hours a public market from all Metrus pops into being in the community space of the lobby and is publicly encouraged as a way of sharing matoran culture between regions of the city. Several information booths are positioned throughout the lobby and manned by vahki to assist in directions or questions. The central pillar houses public elevators going up, along with freight elevators going up and down. There are two emergency stairwells going up in case of fire or evacuation.

Public Floor 49
A indoor water park supported by Ga-Metru tourism department.

Private Floor 48
The private residence halls of Turaga Dume.

Private Floor 49
The private visitation gardens of Turaga Dume.

Private Floor 50
The official office of Turaga Dume. The balcony that rings the entire floor is used for public broadcasts, addresses, and the occasional kite flying.