The end of the world as seen through the eyes of Jesus.
This is looking at one of Jesus' private teaching sessions to the disciples, while they sat on the Mount of Olives overlooking Jerusalem.
The sermon topic was 'things relating to the end of the world, and Christ's second coming', which has been recorded in Matthew chapters 24 and 25.
Jesus taught these things in response to the disciples asking WHEN the Temple would be destroyed, and WHAT would the sign be of His coming at the end of the age.