Right ... and if we look at the record in Ezekiel 47, we see the borders of the city called "the LORD is there":
Ezekiel 47:
15 And this shall be the border of the land toward the north side, from the great sea, the way of Hethlon, as men go to Zedad;
16 Hamath, Berothah, Sibraim, which is between the border of Damascus and the border of Hamath; Hazarhatticon, which is by the coast of Hauran.
17 And the border from the sea shall be Hazarenan, the border of Damascus, and the north northward, and the border of Hamath. And this is the north side.
18 And the east side ye shall measure from Hauran, and from Damascus, and from Gilead, and from the land of Israel by Jordan, from the border unto the east sea. And this is the east side.
19 And the south side southward, from Tamar even to the waters of strife in Kadesh, the river to the great sea. And this is the south side southward.
20 The west side also shall be the great sea from the border, till a man come over against Hamath. This is the west side.
I believe Ezekiel describes a city on earth.
Additionally, look again at Revelation 20 at the time of the thousand year reign of the Lord Jesus Christ:
Revelation 20:
7 And when the thousand years are expired, Satan shall be loosed out of his prison,
8 And shall go out to deceive the nations which are in the four quarters of the earth, Gog and Magog, to gather them together to battle: the number of whom is as the sand of the sea.
9 And they went up on the breadth of the earth, and compassed the camp of the saints about, and the beloved city: and fire came down from God out of heaven, and devoured them.
10 And the devil that deceived them was cast into the lake of fire and brimstone ...
As far as the city Abraham looked for, the city whose builder and maker is God, that is new heaven/new earth:
Revelation 21:
1 And I saw a new heaven and a new earth: for the first heaven and the first earth were passed away; and there was no more sea.
2 And I John saw the holy city, new Jerusalem, coming down from God out of heaven, prepared as a bride adorned for her husband.
3 And I heard a great voice out of heaven saying, Behold, the tabernacle of God is with men, and he will dwell with them, and they shall be his people, and God himself shall be with them, and be their God.
4 And God shall wipe away all tears from their eyes; and there shall be no more death, neither sorrow, nor crying, neither shall there be any more pain: for the former things are passed away.
5 And he that sat upon the throne said, Behold, I make all things new. And he said unto me, Write: for these words are true and faithful.
6 And he said unto me, It is done. I am Alpha and Omega, the beginning and the end. I will give unto him that is athirst of the fountain of the water of life freely.
7 He that overcometh shall inherit all things; and I will be his God, and he shall be my son.