This year I saw my first real carnaval, at the Sambadrome (full name: Sambódromo Marquês de Sapucaí) in Rio de Janeiro. It was BIG. We were too far away to get a good look at the dancers, which was a pity because usually the look really great, but it was impressive anyway. The truck were so big and beautiful!
Note: The photos are not of good quality, because I only used my phone (which was adviced by the tour operator).