NASA has confirmed, but only accidentally, what many people have suspected for long time, namely Moon's Ruins of mysterious civilizations. In the picture below, taken at the NASA Ames Research Center, if we zoom the picture on the table, we can clearly distinguish two structures on the Moon that are not necessarily natural.
We can clearly see a square shaped building, and on the right a triangular structure or maybe a bridge on the Moon. The Man in the foreground is Anthony Colaprete and works at NASA www.nasa.gov/centers/ames/research/2007/colaprete.html.
Could those structures on the Moon be made by civilizations? It 'a very intriguing mystery. Below there is also a Video of the strange structures on the Moon.
Video of the Strange Structures on The Moon visible on a NASA picture