Dec 22-23, 2013 - Humahuaca, Uquia, and Tilcara

Probably the scariest drive I have ever done. Unfortunately once we were far enough up to realize I had made a mistake, the only choices we had were to keep going until we found a place we could turn around, or to reverse all the way back down. We opted for the onward and upward. Still not sure what would have happened if we met someone going the opposite direction along the way.
Seriously, look at those stupid turns.