A short blurb on the YouTube site for this video says:
A group of archeologists has discovered a large circular pyramid in Bolivian Amazonia, dating back more than 2,000 years. The discovery took place in the fortress of Samaipata, a hill believed to be a ceremonial centre of diverse pre-Hispanic cultures. Local media report that the excavations will not be completed until the end of 2015.
The fortress is also considered a UNESCO world heritage site.