Ten thousand years ago that unknown civilization carefully mapped the entire surface of the globe.
Seven, an undercover operative for an unknown alien civilization, would have been a contemporary of Khan, more or less.
The pirates went everywhere, so they were also good for intelligence information regarding enemy or unknown civilizations.
Perhaps some unknown civilization had risen in the Mesozoic.
This was built by a different culture, a lost and unknown civilization.
Gonfala of the wonders that awaited her in unknown civilization, for she was going to London.
The unknown civilization which developed this site inhabited it between the 4th century and 9th centuries AD.
The concept of the album is to simulate an ancient ceremony from an unknown civilization.
They are huge structures left behind by some almost unknown alien civilization called the Annunaki.
We are the primitives of an unknown civilization.