Luke Skywalker's Jedi temple

A Jedi Temple was used by Luke Skywalker to train a new generation of Jedi some time after the end of the Galactic Civil War. However, one of Skywalker's students, his own nephew Ben, ended up falling to the dark side of the Force. He committed a massacre, killing many of his fellow acolytes, and the temple was left burning. Years later, the young Force-sensitive scavenger named Rey had a vision that included glimpses of Luke Skywalker and his astromech droid R2-D2 watching the burning temple in the background.

Behind the scenes
The burning ruins of Luke Skywalker's Jedi Temple were briefly seen in the 2015 film Star Wars: Episode VII The Force Awakens, during Rey's vision. Although the location is not identified in the movie, itself, the official screenplay describes that building as a temple.