we are thinking of either rio de janiero, brazil or buenos aires, argentina.both are in our price range and would work out great.both have what i requested in a honeymoon, a cool city, a beach and some culture and less than a 18 hour flight. has anyone been to either of these areas? i am pretty well traveled but have not been to Brazil or Argentina. i really like both so it is hard to decide. any advice would be great.and if you are booking a honeymoon and have no idea where to go, i suggest Bali, Indonesia.we went this summer and it was better than i had imagined. lots of fun, inexpensive (relatively) and gorgeous.i have lots of advice if anyone is considering staying there, feel free to ask. we went for 2 weeks in June, 09.