Explore the breathtaking northwest of Argentina, where Franciscan monks first settled and built whitewashed churches in the desert. You will wonder if you stepped into another country. That is how great the contrast to the rest of Argentina. There is a decidedly Bolivian influence with colorful Andean costumes and indigenous markets and music. The landscape is incredibly impressive, with dramatic rock formations, towering cacti, and deep valleys with bright orange and red tones.