1.   Another is Seni Onsen, where the spring is inside a natural cave.

2.   Ash gray inside and out, the dwellings in the sassi were hewn out of the natural caves and water cisterns that run through the chalky rock.

3.   Nor can natural caves offer refuge for long.

4.   The Tora Bora stronghold, for example, contains several natural caves with no connecting tunnels.

5.   In addition, hundreds of natural caves dot ridgelines and mountainsides.

6.   The natural caves are a popular tourist site for visitors to the jungle area.

7.   The terrorist leaders may also be hiding in natural caves deeper inside the heavily forested range, Jalali said.

8.   The woman lies on a low platform in an hourglass-shaped room that has been carved from a natural cave.

9.   This is a natural cave in which two, hot and cold, water sources, send out streams of water flowing side by side.