The answer is: Brazil.
This fascinating video from the New York Times shows a unique poverty stricken area in Brazil that has produced some of the world's top super models like Gisele Bündchen and Alessandra Ambrosio. It turns out that German, Italian and Russian migrants settled in this area many years ago and their descendants have the features that the world finds attractive. Modelling scouts study books and websites to track which areas Europeans settled in. They then visit schools (which is kind of creepy) hunting for attractive teens and pre-teens (even creepier) for their modelling agencies.
I won't spoil the rest of the story but the article and video can be found in the following link: Finding Supermodels in Rural Brazil - Video Library - The New York Times.