Good watch a firm favourite
The Lost City of Z (2016)- Story of Percy Fawcett sent to South America to draw a boundary between countries, discovers artifacts of an ancient civilization, and an abbreviated chronicle his continuing attempts to find the City of Zed. This story feels historical, but ultimately it is grim, nothing that I would describe as memorable. You may enjoy it.
Large lost settlements since then have been found in the Amazon in the vicinity of where Fawcett was looking for his city. It has been speculated that disesase brought by Spanish Conquistadors may have caused the collapse of this civilization to re absorbed by the jungle.
Q-6