Revelation 13:1

The Two Beasts

13:1 Then I saw a beast coming up out of the sea. It had ten horns and seven heads, and on its horns were ten diadem crowns, and on its heads a blasphemous name.

Revelation 13:3

13:3 One of the beast’s heads appeared to have been killed, but the lethal wound had been healed. And the whole world followed the beast in amazement;

Revelation 17:9-10

17:9 (This requires a mind that has wisdom.) The seven heads are seven mountains the woman sits on. They are also seven kings: 17:10 five have fallen; one is, and the other has not yet come, but whenever he does come, he must remain for only a brief time.