10.Ανεξήγητα Φαινόμενα- Πέτρινοι Γίγαντες

 

http://egpaid.blogspot.com/2011/02/blog-post_18.html

 http://www.slideboom.com/presentations/497023/%CE%91%CE%BD%CE%B5%CE%BE%CE%AE%CE%B3%CE%B7%CF%84%CE%B1-%CF%86%CE%B1%CE%B9%CE%BD%CF%8C%CE%BC%CE%B5%CE%BD%CE%B1-%CE%A0%CE%AD%CF%84%CF%81%CE%B9%CE%BD%CE%BF%CE%B9-%CE%B3%CE%AF%CE%B3%CE%B1%CE%BD%CF%84%CE%B5%CF%82