I recently found some 8 mm film of my grandparents' trip to South America. I assumed it was strictly to visit family in Córdoba, Argentina, but there is film footage of Lima, Santiago, Buenos Aires, Rio and Brasilia. With the generous help of my father I have been able to digitize the film reels. I hope you find them as fascinating as I do.
This post contains videos for Buenos Aires, Rio and Brasilia. The links for each video are below the screenshot.