Luke 17:21 " Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you"
According to that scripture it's not some far off place. One need only connect with the spirit within them self.
Romans 8:16 "The Spirit itself beareth witness with our spirit, that we are the children of God
John 10:34 "Jesus answered them, Is it not written in your law, I said, Ye are gods?"
John 14:12: "Verily, verily, I say unto you, He that believeth on me, the works that I do shall he do also; and greater works than these shall he do"
Psalm 82:6 " I have said, Ye are gods; and all of you are children of the most High."
Whether one is a believer of these scriptures or not it doesn't sound the Kingdom of God is some place beyond the galaxy where people reunite with all of their deceased loved ones and pets.