Revelation 18:21
Then a mighty angel picked up a rock the size of a huge millstone and threw it into the ocean, saying, "This is how the great city of Babylon will be violently thrown down and will never be found again.
Revelation 5:2
And I saw a mighty angel proclaiming in a loud voice, "Who deserves to break the seals on it and open the book?" [Note: This "book" was probably a rolled up scroll written on both sides, with wax seals keeping it from unrolling and its contents from being exposed].
Revelation 10:1
And I saw another mighty angel coming down from heaven. He was covered by a cloud and there was a rainbow above his head. His face was like the sun and his legs were like pillars of fire.
Revelation 12:8
But they did not win and so lost their place in heaven.
Revelation 16:20
And every island disappeared and the mountains could not be found.
Revelation 18:10
They will stand far away, out of fear over her torment [Note: They will keep their distance for fear of becoming involved in the torment themselves], saying, 'It is too bad for the great, strong city of Babylon! Your judgment has come in a single hour.'
Revelation 18:22
And the sound of harp-players and musicians and flute-players and trumpet-players will never be heard in you again. And no workers of any trade will be found in you again, and the sound of a [flour] mill [grinding] will never be heard in you again.
Revelation 20:11
Then I saw a great, white throne and Him who was seated on it [i.e., probably Christ]. Earth and heaven fled from His presence and they were not found anywhere [again].