I suggest Mark 13 read something like this:
1 As Jesus was leaving the temple, one of his disciples said to him, “Look, Teacher! What massive stones! What magnificent buildings!”
2 " I tell you, I will tear down this Temple and build another!"
3 As Jesus was sitting on the Mount of Olives opposite the temple, Peter, James, John and Andrew asked him privately, 4 “Tell us, when will these things happen? And what will be the sign that they are all about to be fulfilled?”
5 Jesus said to them: “Watch out that no one deceives you. 6 Many will come in my name, claiming, ‘I am he,’ and will deceive many. ..... 8 Nation will rise against nation, and kingdom against kingdom. There will be earthquakes in various places, and famines.
9 “You must be on your guard. You will be handed over to the local councils and flogged in the synagogues. On account of me you will stand before governors and kings as witnesses to them. .... 11 Whenever you are arrested and brought to trial, do not worry beforehand about what to say. Just say whatever is given you at the time, for it is not you speaking, but the Holy Spirit.
12 “Brother will betray brother to death, and a father his child. Children will rebel against their parents and have them put to death. .....
17 How dreadful it will be in those days for pregnant women and nursing mothers! 18 Pray that this will not take place in winter, 19 because those will be days of distress unequaled from the beginning, when God created the world, until now—and never to be equaled again.
24 “But in those days, ....“‘the sun will be darkened,
and the moon will not give its light;
25 the stars will fall from the sky,
and the heavenly bodies will be shaken.’[c]
26 “At that time people will see the Son of Man coming in clouds with great power and glory. 27 And he will send his angels and gather his elect from the four winds, from the ends of the earth to the ends of the heavens.
28 “Now learn this lesson from the fig tree: As soon as its twigs get tender and its leaves come out, you know that summer is near. 29 Even so, when you see these things happening, you know that it[d] is near, right at the door. 30 Truly I tell you, this generation will certainly not pass away until all these things have happened. 31 Heaven and earth will pass away, but my words will never pass away.