High in the mountainous Northern coast of the Earth Kingdom resides the Northern Air Temple. It was home to the Flying Bison polo championships in the days when the monks lived in it. After the extermination of the monks, the temple was rediscovered by the Mechanist and his group of refugees. The Mechanist used the gliders within to give his paraplegic son Teo a new life in the air. However, he was extorted for weapons manufacture by the Fire Nation, who threatened to attack if he did not comply. He hid the machines in what was formerly the Sanctuary of the temple, unknown to the temple's other residents. The Northern Temple was modified by the Mechanist to house more people than before, and many of the original structures were destroyed or expanded to help accommodate the new residents. The temple also underwent many technological "upgrades", as the Mechanist added new inventions to help make the lives of the residents easier.