Location from Avatar: The Last Airbender by Michael Dante DiMartino & Bryan Konietzko
A towering Earth Kingdom city built into canyon walls, famous for its gravity-defying earthbending mail delivery system — ruled by the ancient and eccentric King Bumi.
Omashu is a city that defies gravity through sheer earthbending willpower. Built vertically into canyon walls, its architecture climbs impossibly upward — terraces, platforms, and buildings stacked like a mad architect's fever dream. The mail delivery system doubles as the world's greatest slide: stone chutes channel packages and occasionally people through the city at breakneck speed. King Bumi rules from the top, a seemingly senile old man who is secretly the most powerful earthbender alive and one of Aang's oldest friends — literally over a hundred years old. The city fell to the Fire Nation during the war, but Bumi single-handedly liberated it during the Day of Black Sun eclipse when firebenders lost their power. The streets smell of rock dust and cabbage. Merchants shout from terraced market stalls. The canyon wind howls between buildings.
A vertical city of stone terraces and platforms rising from a deep canyon. Buildings stack upward along steep cliff faces connected by stone ramps, bridges, and the famous mail chute system — stone slides that send packages rocketing through the city at terrifying speed. Green Earth Kingdom banners hang from balconies. The palace sits at the summit.
Also known as: City of Omashu, New Ozai