Po-Metru
Metru Nui's Stone District, home to carvers whose work defined the city and site of an ancient conflict that threatened to divide it.
Po-MetruMetruIn the Matoran language a metru was a single district of Metru Nui; the city was divided into six such districts, one for each element, and the term covered both the place and the elemental community that lived in it. was where Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive.'s greatest stone carvers worked, producing the statues and carvings that defined the city's skyline. Located near the northern tip of the sprawling city-district, it was the Stone District and home to the industrious Po-MatoranMatoranThe most abundant species in the Matoran Universe, chosen by Mata Nui to inhabit and maintain his cosmic body.. The ZadakhZadakhThe Vahki model assigned to Po-Metru, the Zadakh were the strongest of the order-force lines and carried Staffs of Suggestion that left any Matoran they struck willing to follow orders from almost anyone. VahkiVahkiMetru Nui's mechanical law enforcement squads, designed to maintain rigid order but ultimately undermined by chaos beyond their programming. patrolled its open-air workshops and scattered camps. It's one of those locations that feels less like a single organized sector and more like a patchwork of working settlements, each humming with the sound of chisels on stone.
The Center of Stone#
Po-MetruMetruIn the Matoran language a metru was a single district of Metru Nui; the city was divided into six such districts, one for each element, and the term covered both the place and the elemental community that lived in it. wasn't built as a single hub the way some of the other districts were. Instead, it sprawled across the northern reaches of the city in loose collections of workshops where Po-MatoranMatoranThe most abundant species in the Matoran Universe, chosen by Mata Nui to inhabit and maintain his cosmic body. carved the statues, decorations, and architectural elements that gave Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive. its character. TuragaTuragaFormer Toa who fulfilled their destiny and transformed into leaders. Turaga wield Noble Kanohi masks and weakened elemental powers, guiding their communities. VakamaVakamaA Ta-Metru maskmaker transformed into the Toa Metru of Fire, leader of his team through the Visorak war, and Turaga of Ta-Koro for a thousand years. saw Po-MetruMetruIn the Matoran language a metru was a single district of Metru Nui; the city was divided into six such districts, one for each element, and the term covered both the place and the elemental community that lived in it. as embodying the great spirit of civilization, recognizing that stone and craft were foundational to the city's identity. The open, scattered nature of the district meant it lacked the rigid organization you'd find in other MetruMetruIn the Matoran language a metru was a single district of Metru Nui; the city was divided into six such districts, one for each element, and the term covered both the place and the elemental community that lived in it., but that flexibility gave Po-MetruMetruIn the Matoran language a metru was a single district of Metru Nui; the city was divided into six such districts, one for each element, and the term covered both the place and the elemental community that lived in it. a certain durability.
The War That Nearly Broke Everything#
Nearly 80,000 years before Mata NuiMata NuiBuilt by the Great Beings to restore Spherus Magna, Mata Nui sustained an entire civilisation inside his body, was deposed by Teridax, and reclaimed his purpose as a mortal on Bara Magna.'s death, a border dispute between Po-MetruMetruIn the Matoran language a metru was a single district of Metru Nui; the city was divided into six such districts, one for each element, and the term covered both the place and the elemental community that lived in it. and Ta-MetruTa-MetruThe fire district where Ta-Matoran perfected their craft and powered Metru Nui's industry for thousands of years. spiraled into something far more serious. What started as a local disagreement escalated, and soon residents from both districts were in open conflict. The tension spread outward as the two MetruMetruIn the Matoran language a metru was a single district of Metru Nui; the city was divided into six such districts, one for each element, and the term covered both the place and the elemental community that lived in it. fought, with the rest of the city's districts forming alliances and fracturing Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive. along its own internal fault lines. It was only the Brotherhood of MakutaMakuta (Species)Shadowy Antidermis beings and the Brotherhood's elite, Makuta commanded darkness and shaped the Matoran Universe's fate.'s intervention that finally brought an end to the fighting and healed the hostility between the MetruMetruIn the Matoran language a metru was a single district of Metru Nui; the city was divided into six such districts, one for each element, and the term covered both the place and the elemental community that lived in it.. That intervention, though, came with a cost invisible at the time. The Brotherhood's reach extended deep into the city's affairs, a presence that would later define everything.
Destruction and Silence#
The Great CataclysmThe Great CataclysmThe day Makuta Teridax put the Great Spirit to sleep, the Great Spirit Robot fell from the sky, Metru Nui flooded, and Voya Nui tore loose from the Southern Continent. devastated Po-MetruMetruIn the Matoran language a metru was a single district of Metru Nui; the city was divided into six such districts, one for each element, and the term covered both the place and the elemental community that lived in it. like everywhere else. Yet it also left Po-MetruMetruIn the Matoran language a metru was a single district of Metru Nui; the city was divided into six such districts, one for each element, and the term covered both the place and the elemental community that lived in it. least damaged overall, which paradoxically made it the refuge for the surviving MatoranMatoranThe most abundant species in the Matoran Universe, chosen by Mata Nui to inhabit and maintain his cosmic body. as repairs began. When the VisorakVisorak (Rahi)Spider-like Rahi employed by the Brotherhood of Makuta whose name meant 'Stealers of Life' and whose swarms threatened the Matoran Universe. later conquered the city, webs covered the district and RoporakRoporakOne of six Visorak breeds, Roporak were the horde's infiltrators and scouts during its 2005 assault on Metru Nui. made their nests in the carvers' abandoned studios. A thousand years passed before the Staff of ArtakhaArtakhaArtakha is the master craftsman of the Matoran Universe, ruler of a hidden island where the Toa Mata came into being and the Avohkii was forged. restored Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive. entirely, allowing Po-MatoranMatoranThe most abundant species in the Matoran Universe, chosen by Mata Nui to inhabit and maintain his cosmic body. to return to their workshops. But the city itself was ultimately temporary. When Spherus MagnaSpherus MagnaA desert world of ancient conflict that became the merger point of the Matoran Universe and Bionicle's true endpoint. reformed, Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive. was abandoned once more, and the stone carvers departed, leaving behind only their work.
Compiled from primary sources by Lore Fortress editorial. Reviewed by Joe Garratt, Editor-in-Chief.
Sources
- WikiBS01: Po-Metru
- BookBIONICLE Legends 8: Downfall, Metru Nui locations and history
- SerialGreg Farshtey BIONICLE Serials, Historical lore
Spotted a factual error or a primary source we missed? Email a correction. Every flagged claim gets reviewed.
Followed from this entry

Metru
In the Matoran language a metru was a single district of Metru Nui; the city was divided into six such districts, one for each element, and the term covered both the place and the elemental community that lived in it.

Ta-Metru
The fire district where Ta-Matoran perfected their craft and powered Metru Nui's industry for thousands of years.

Metru Nui
The city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive.

The Great Cataclysm
The day Makuta Teridax put the Great Spirit to sleep, the Great Spirit Robot fell from the sky, Metru Nui flooded, and Voya Nui tore loose from the Southern Continent.

Zadakh
The Vahki model assigned to Po-Metru, the Zadakh were the strongest of the order-force lines and carried Staffs of Suggestion that left any Matoran they struck willing to follow orders from almost anyone.
Artakha
Artakha is the master craftsman of the Matoran Universe, ruler of a hidden island where the Toa Mata came into being and the Avohkii was forged.
Mentioned in72 entries
"Kratana"
A small mask-attaching creature resembling a cross between a Krana and a Kraata, kept by the Order of Mata Nui, that shows visions of the past and future onto whoever wore one.
Ahkmou
A Po-Matoran carver of Metru Nui, one of the six Great Disk holders, who betrayed his fellow Matoran to the Dark Hunters, served Makuta Teridax, and became a false Turaga during Teridax's reign.
Akilini
Akilini was the official sport of Metru Nui, in which Matoran surfed on Kanoka disks and threw others through scoring hoops, with tournaments held on the shifting floor of the Coliseum.
Ally: Po-Matoran of Metru Nui
Ally was a Po-Matoran native to Metru Nui who helped build Po-Koro on the island of Mata Nui, served in the Po-Koro Guard, and made a final stand against the Bohrok before the swarms were stopped.
Archives Mole
Small, harmless burrowing Rahi engineered by the Makuta, originally native to Po-Metru and forced into the shadowy recesses of the Onu-Metru Archives, where their cooperative behaviour built living ladders and bridges through the lower levels.
Ash Bear
A powerful bear-like Rahi created by the Makuta, two to three times the size of a Matoran, kept in the Archives of Metru Nui and best known through Graalok, the territorial bear of Le-Wahi.
Assembler's Village
Assemblers' villages were small, isolated Po-Matoran workshop settlements in Po-Metru where crafters assembled Matoran goods and tools from parts shipped across the city.
Bour
Bour was a Po-Matoran bricklayer who laid the foundations of the carvings of Po-Koro on Mata Nui before returning to Metru Nui with his people.
Hafu
Hafu was a Po-Matoran Carver of Po-Koro, recognized as a Master Carver, who served in the Chronicler's Company and survived the Reign of Shadows.
Hewkii
Hewkii rose from Po-Metru Matoran to Mata Nui's foremost kolhii player, then served as Toa Inika and Toa Mahri through the late wars of the universe.
Kamen
Kamen was a Po-Matoran stonemason who kept the carvings of Po-Koro safe from desert erosion and lived through the Bohrok attacks on Mata Nui.
Kanohi Rau
The Kanohi Rau allowed its wearer to comprehend foreign written and spoken languages, and was most associated with Turaga Nokama.
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