National Chocolate Festival in San Carlos de Bariloche
Bariloche's Holy Week festival built around a giant chocolate Easter egg constructed each year in the city's Civic Center, a tradition introduced by chocolatier Luis Brogger. The festival also opens with an oversized chocolate-and-cereal bar and distributes thousands of eggs to visitors over its run.
Bariloche's chocolate festival was born roughly five hundred kilometers from where it's held: the idea came from organizers who had seen the Apple Festival in General Roca and wanted something comparable built around Bariloche's own signature product.