CARAL, the ancient city in Peru

Ancient city in Peru - CARAL - 2nd largest tourist attraction in Peru - But the interesting thing about these area is the major detail in these pyramids. - It's truly shocking to see thousands and thousands of years ago people used to be so much more highly advanced than us. I always think... Did they have access to "technology" and choose not to use it because they knew it would destroy the earth? Did they build everything out of stone because they knew the delicate balance of earth and resources? For such an ancient culture we can learn so much more from them than we can in school or even at work. Things need to change and it's about time we start looking to our history for answers.