The first one is the rebuilding of the Temple in Jerusalem. This will be the fourth and final Temple built on the earth. The Bible states that the Messiah will build the Temple for the Millennial Kingdom:
"12 And speak unto him, saying, Thus speaketh the LORD of hosts, saying, Behold the man whose name is The BRANCH; and he shall grow up out of his place, and he shall build the temple of the LORD: 13 Even he shall build the temple of the LORD; and he shall bear the glory, and shall sit and rule upon his throne; and he shall be a priest upon his throne: and the counsel of peace shall be between them both." (Zechariah 6:12-13)
The Old Testament uses the appellation "Branch" as another name for the Messiah. Therefore, Jesus will rebuild the Temple at the beginning of the Millennium. The third or Tribulation Temple that the Antichrist enters and defiles will be destroyed at some stage during the Tribulation by one of the earthquakes that occurs or by the armies of the Antichrist. The Temple that Jesus builds will be a magnificent edifice.
The first description that Ezekiel provides is that the Temple will sit on a high mountain in Jerusalem:
"1 In the five and twentieth year of our captivity, in the beginning of the year, in the tenth day of the month, in the fourteenth year after that the city was smitten, in the selfsame day the hand of the LORD was upon me, and brought me thither. 2 In the visions of God brought he me into the land of Israel, and set me upon a very high mountain, by which was as the frame of a city on the south." (Ezekiel 40:1-2)
Though Jerusalem currently rises above its surrounding area, it is not located on a "very high mountain". However, when Jesus sets His foot upon the Mount of Olives an earthquake occurs and splits the mount in two. This event must also change the surrounding topography sufficiently enough to create this new mountain in Jerusalem.
Isaiah confirmed the fact that the Millennial Temple will sit on a high mountain when he wrote:
"2 And it shall come to pass in the last days, that the mountain of the LORD's house shall be established in the top of the mountains, and shall be exalted above the hills; and all nations shall flow unto it." (Isaiah 2:2 )
It is possible that this mountain could be the highest one in the world after the renovation takes place. In any case all the inhabitants of the earth will visit it.
This Temple appears not to have any of the furnishings of the previous Temples except for the altar. Ezekiel does not mention seeing the Ark of the Covenant, Table of Shewbread, or the Menorah. I believe the reason Jesus omits these things is because He Himself will visibly reside in the Temple and reign over the earth from there.