St. Luke 17:21 Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you.
The kingdom of God that Jesus was talking about is not what you can see with us physical eyes neither could anyone say they know where the kingdom of Gods is. It not like the beliefs of the Mormon that the kingdom of God will be built somewhere in the USA. The believes and the book of Mormon is full of errors. The Jerusalem that we have now is the physical Jerusalem but speak about the spiritual Jerusalem. The Bible talk about the new Jerusalem which is above.
Galatians 4:26 But Jerusalem which is above is free, which is the mother of us all.