All of the stones of the temple complex in Jerusalem would be thrown down. Israel’s enemies would dig trenches surrounding the city to stop all traffic from going into or coming out of the city and that these enemies would leave no stone standing in the city and would kill its citizens. Christ also stated that this would happen because the Jews rejected him as their Messiah.
Fulfilled In 70 A.D., after a period of surrounding Jerusalem with trenches and stopping all traffic from going into or leaving the city ( just as Christ predicted), the city of Jerusalem and the temple were completely destroyed by Romans.
Mark 13:2, Luke 19:41-44, New Testament, the Bible