Once more time, it's Documentary time! Osorno was one of the Seven Lost Cities, destroyed after the Battle of Curalaba of 1598, in one of the greater colonial setbacks of an european power in America. For about 200 years, the ruins of the city where covered by the jungle, and the lost city became part of a myth to be searched by the later explorers. I invite you to see a documentary about it! (video in Spanish, subtitles in English!)