Omashu

Omashu is the second largest city in the Earth Kingdom and the capital of one of its states. Only outdone in size and importance by Ba Sing Se, Omashu was one of the last great strongholds of the Earth Kingdom during the Hundred Year War, and continued to supply the Earth Kingdom Army with troops and supplies until it was taken by Fire Nation forces in the closing months of the great war. The gates of this bustling metropolis are guarded by an army of earthbenders. This city is also well known for its famous delivery system powered by a combination of both earthbending and gravity.

The tall mountain peak on which Omashu was founded is located in the Kolau Mountains in the southwestern Earth Kingdom. It rises high out of a deep chasm and was created by earthbenders several centuries prior to King Bumi's reign. Being built on this mountain provides the city with one of its best defenses; the only way to reach the gates of Omashu is across a long narrow bridge of stone that spans the sheer gorge.

Previously ruled by Bumi, Omashu was conquered by the Fire Nation during the War and renamed New Ozai.[4] However, during the Day of Black Sun, the powerless firebenders were expelled from the city, and it was once again reclaimed by the Earth Kingdom.

It was destroyed by The Viking Alliance as part of Eirik to overthrow the Earth Empire.