HERE ARE "The Lost Pyramids Of The Amazon". Look what say about it:
In the tangled and dense jungles of the Amazon, there are numerous mysteries that could probably help us understand how ancient civilizations live in the distant past. We know so little about our planet, and researchers are unaware of the possible archaeological discoveries that remain hidden in the Amazon. As technology moves forward and tools as Google Earth become more popular, many people try their luck hoping to make a discovery that no one else has made in the past. Google Earth has become the one of the boldest tools numerous archaeologists are using, consistently delivering huge results that help researchers in many ways.

We are talking about the pyramids of paratoari, usually referred to as “the dots”, seen in one of the satellite images from NASA.
Even thought that several researchers believe that the Pyramids of Paratoari are truncated ridge spurs, which can take the form of natural pyramids, there are many other scientists who firmly believe that these structures were built in the distant past by a civilization that has never before been seen.

Excursions to the region found plenty of evidence of Incan inhabitance in the area, such as petroglyphs, paved roads, and platforms.

The mysterious pyramidal structures were first identified via NASA satellite photograph number C-S11-32W071-03, released in 1976. The images caused numerous researchers to venture to the Manu area of dense tropical rainforest in southeast Peru in hopes to find out whether these structures were actually built by an ancient civilization, lost in time.