A remarkable and vast lost city with pyramids has been found in an impossible to access Amazon jungle.
Researchers used a technology called Lidar which was able to see through objects or surfaces - and they were successfully able to uncover the lost city in Bolivia.
The tech was able to see through the Amazon's vegetation and their findings have revealed lost villages, towns, hamlets along with huge fields.
The jungle has been impossible to access for centuries due to its vast land and inaccessibility.
And it's thanks to a British explorer named Colonel Percy Fawcet who, in 1952, originally went on a mission to find the City of Z in the uncharted Amazon.
He had packed rifles, machetes, and a ukulele and went about his trek.
The explorer was adamant there was a fallen civilization and he was convinced he would find "the last great blank space in the world".
He was convinced the lost City of Z existed and had followed his trail in order to prove he was right.
Tragically, Percy never returned and no one ever knew if he found the lost City of Z with the skull of the British explorer reportedly found many years later.
But now his efforts have been vindicated after new technology has revealed the vast jungle on the edge of the Amazon.
Until now much of the jungle had been blocked by trees, plants and greenery for centuries.
And any efforts to try and access the jungle were virtually impossible but modern technology has now remarkably changed that.
The tech has revealed a lost city which contains villages, towns, hamlets and huge fields.
There is even a five-metre high mound the area of thirty football pitches - which experts believe would have taken half a million person-days to build.
In addition, on the mound itself they also found 20m-high earth pyramids, which shows how a vast civilisation.