Hi all, I m going visit Buenos Aires and Brazil for the first time this coming february. Actually, it is my first visit to South America. Spending approx. 4 nights in each city, I wanted to know if you would have any recommendations/ tips about restaurants (esp. local specialities, "must have beens" or hard to book/ hard to find), nightclubs and local sights which you as locals could recommend. If you have any other advice, I would be very glad to get your views. Arigato gozaimasu!!