This is a great way to combine two of the most interesting and diverse nations of South America. Brazil and Argentina compliment eachother naturally and this trip is a great way to see some of the best of both. You start at the Brazilian Beaches of Buzios before stopping at the iconic City of Rio de Janeiro. Then it's a flight down to Iguassu falls set in lush tropical rainforest. Your final stop is the rich mix of modern cosmopolitan and historical grandeur that is Buenos Aires.