But under the ash, somehow miraculously untouched by all the destruction, lay the remains of an alien civilization.

They are to find the remains of a civilization that should have died two centuries earlier.

Dig nearly anywhere in this city, and you hit the remains of an earlier civilization.

They are beyond question the remains of a prehuman civilization!

The hole was gradually enlarged exposing the layers of earth, which contained the remains of an ancient civilization.

An expedition from Earth to Mars discovers a deserted city, the remains of an advanced civilization that died out 50,000 years ago.

I'll employ the same scientific approach and start looking for remains of a mycenan civilization in my garden.

Since then, they had been exploring the remains of a mysterious dead civilization uncovered by the portal closing.

Some archaeological remains of an ancient civilization are discovered along the dry Hakra River bed which crosses the park.

Excavations in the area revealed the remains of a 4,000 year old civilization.