The earlier collective tombs were cut, like artificial caves, out of the soft limestone.

Seventeen minutes later the car surfaced in a pool which occupied much of an artificial cave.

The small narrow tunnel is still visible on the top of this artificial cave.

An escorted journey through the mountains of northeastern Afghanistan led him to a small artificial cave.

The pottery, located completely inside an artificial cave deep in the rock, is a local tourist attraction.

It has a gothic arch door that allow visitors to see the artificial cave where the source comes from.

She backed toward the opening of the artificial cave, taking in every detail.

According to Chillida's plan's, an artificial cave is to be bored into the mountain.

There appeared to be an artificial cave of some sort in the face, jet-black and without perspective.

He took several deep breaths and went in again, standing his ground this time when light flooded the artificial cave.