Fodor's Expert Review Parque Natural de Montesinho
These 185,000 acres of rolling hills are one of the most remote, least developed areas of the country. It's home to a growing population of Iberian wolves, which you're not likely to see except on a guided nature tour. In the villages that dot the park, some ancient traditions survive. Rio de Onor, right on the Spanish border, has traditional dwellings where livestock inhabit the ground floor and humans live one story up, warmed by the animals' body heat in cold winter months.