Revelation 4:2

4:2 Immediately I was in the Spirit, and a throne was standing in heaven with someone seated on it!

Revelation 6:14

6:14 The sky was split apart like a scroll being rolled up, and every mountain and island was moved from its place.

The Seventh Seal

8:1 Now when the Lamb opened the seventh seal there was silence in heaven for about half an hour.

14:17 Then another angel came out of the temple in heaven, and he too had a sharp sickle.

15:5 After these things I looked, and the temple (the tent of the testimony) was opened in heaven,

18:5 because her sins have piled up all the way to heaven and God has remembered her crimes.

19:14 The armies that are in heaven, dressed in white, clean, fine linen, were following him on white horses.