Yeah, and other parts of Revelation clearly show a literal seven headed, ten horned beast making war with the saints, too. Because that's what it says.
This is apocalyptic literature. It is coded so that "the wise will understand" (Daniel 12:10).
In the example you cite, IMO "seven heads" are seven nations that were to arise and provide order in the Middle East. These are:
1. Egypt
2. Assyria
3. Babylon
4. Persia
5. Greece
6. Rome
7. "Revived Roman empire," headed by Anti-Christ.
The Messiah came during the Roman empire, but the powers that be killed him. That was the worst thing they could have done (1Corinthians 2:8).
Anti-Christ is a future charismatic leader who will broker a peace agreement between Israel and the other Middle-Eastern countries. He will oversee rebuilding the Jewish temple.
The Jews will be ecstatic, until he then takes his seat in the temple, professing himself to be God (2Thessalonians 2:4). Oops, what a revolting development!
Anti-Christ will also be assisted by the "beast who ascends from the abyss" (Revelation 17:8). This beast is described in Revelation 13:1-9, apparently a fallen angel.