Revelation 17:9-12

9Here is the mind that has wisdom: The seven heads are seven mountains, whereon the woman sits.

10And there are seven kings: five have fallen, one is, the other has not yet come; and when he comes he must remain [only] a little while.

11And the beast that was and is not, he also is an eighth, and is of the seven, and goes into destruction.

12And the ten horns which thou sawest are ten kings, which have not yet received a kingdom, but receive authority as kings one hour with the beast.