History:Mysterious Places — The Petroglyphs United States
The sun rises over a soaring mesa. Mysterious images come to life — images inscribed in stone. These are Petroglyphs — timeless engravings carved centuries ago. They are the voice of an ancient people and their descendants，a link to a spiritual world. This is Petroglyph National Monument. 2，000 years ago， these ancient Americans began to carve strange images on the volcanic rocks. Many of these images still survive.
- Added：2006
- Country：America
- Duration：30
- Time of update：2011/8/19 14:22:57