Daniel 2: the kingdom of God will come

What is the kingdom of God? The nearest of such kingdom was focused on the temple in Jerusalem: the place where Heavens and Earth were mixed. The problem is that, now, Babylon rules over Jerusalem and the temple was destroyed. Thus, it seems that the kingdom of God was ended on the earth by the great king of Babylon. The Jews could ask: is Nebuchadnezzar greater than the Lord?
In Daniel 2 the Lord himself makes Nebuchadnezzar to humble himself before Him.
He inserts a dream in the king's mind. The king knows that it is a very special dream and he has to know the revelation, not any revelation. He advised a way: the interpreter should tell the dream and the interpreation.
Daniel prays to the Lord, asking for the revelation. The Lord doesn't show it imediately, but in a dream.
Daniel is marveled by the great Lord that he serves. Certainly, the Lord is above Nebuchadnezzar, but Daniel does 'nt despise him, by contrary, he says to the king:

27-28 Daniel answered the king, “No mere human can solve the king’s mystery, I don’t care who it is—no wise man, enchanter, magician, diviner. But there is a God in heaven who solves mysteries, and he has solved this one. He is letting King Nebuchadnezzar in on what is going to happen in the days ahead.

It is similar to one man saying to the president of US: "there is a God in heaven who solves mysteries".

Daniel describes the dream and its interpretation. The interpretation told about a sequence of human kingdomns, but this sequence will end:

44-45 “But throughout the history of these kingdoms, the God of heaven will be building a kingdom that will never be destroyed, nor will this kingdom ever fall under the domination of another. In the end it will crush the other kingdoms and finish them off and come through it all standing strong and eternal. It will be like the stone cut from the mountain by the invisible hand that crushed the iron, the bronze, the ceramic, the silver, and the gold.

We highlight: "the God of heaven will be building a kingdom that will never be destroyed, nor will this kingdom ever fall under the domination of another". Isn't this kingdom being built now, in our churches?