Western Air Temple

The Western Air Temple was the counterpart to the Eastern Air Temple, housing exclusively female Airbenders. It is located in the mountains north of the Fire Nation, resembling an upside-down pagoda. It was also victim to the Air Nomad Genocide, which destroyed most of the population. The temple is notable in that, unlike the other three temples, it is situated underneath the edge of a cliff, as opposed to a mountaintop. The spires seem as though they were built upside-down, and because of that, the temple is hidden to the passerby.
Like its sister temple, a few of Avatar Aang's female diciples have taken it upon themselves to reclaim use of the temple for the new generation of Air Nomads.