Matthew 24:1-3

1 And Jesus went out of the Temple, and on the way his disciples came to him, pointing out the buildings of the Temple.

2 But he, answering, said to them, See you not all these things? truly I say to you that here there will not be one stone resting on another, which will not be pulled down.

3 And while he was seated on the Mountain of Olives, the disciples came to him privately, saying, Make clear to us, when will these things be? and what will be the sign of your coming and of the end of the world?