Mark 13:1

And as he went out of the temple, one of his disciples saith unto him, Master, see what manner of stones and what buildings are here!

Cross-references

In Matthew 24:1, the disciples similarly point out the temple buildings as Jesus leaves, paralleling this scene.

In Matthew 24:2, Jesus responds with the same prophecy that not one stone will be left on another.

In Luke 21:5-7, the same dialogue about the temple's adornment and Jesus' prophecy unfolds, with added detail on the disciples' question.