An air temple, or airbender temple, is a large structure formerly inhabited by the Air Nomad clan before the Air Nomad Genocide, although, afterwards, they came to be inhabited by nonbender refugees from nations.
Much like shinobi hidden villages, air temples are usually found in isolated or otherwise difficult-to-reach environments, such as mountains and valleys. There are four air temples constructed across the world, of which one was completely destroyed in 125 AG.
Southern Air Temple
The Southern Air Temple was located in the Potala Mountains in the Land of Fire, and was one of the two temples to exclusively house male monks before the beginning of the First Great Shinobi War. It was the home of Naruto Uzumaki's ancestors. The temple featured an inner sanctuary that housed the statues of the previous Avatars. The temple was also home to a statue of the legendary monk Gyatso, as well as the last home of the winged lemur species. It was restored by the Air Acolytes during the times of peace that followed the Third Great Shinobi War, but was destroyed by Akatsuki members Kakuzu and Hidan on their search for Tenzin.
Northern Air Temple
The Northern Air Temple is located in the mountains of the northern coast of the Land of Earth and is one of the two temples that house exclusively male monks. Before the Air Nomad Genocide, it served as the location of the bison polo championship. Years after the devastating blow to the Air Nomads given by Konohagakure, the abandoned temple became a settlement for a group of Land of Earth refugees led by a renowned inventor after their own village was destroyed during a flood. The mechanist modified several parts of the temple to ease the life of its new inhabitants. The temple was home to a series of Buddha statues and paintings, but they were destroyed by the mechanist to make room for his technology.
Eastern Air Temple
The Eastern Air Temple is a triumvirate of temples located in a mountain range in southeast Land of Lightning and was one of the two temples that exclusively housed female nuns. The temple included multiple statues of Avatar Yangchen. After the massacre of the Air Nomads, the temple became the home of Guru Pathik, who taught Naruto how to unlock his chakras to better control the chi of the Nine-Tails. It was home to numerous stables that housed flying bison, and where all young monks-in-training would chose their own bison as lifetime companions.