Wandering around the ruins of Ollantaytambo, an ancient Peruvian town about two hours from Machu Picchu, we looked up as dusk settled in to see this ancient Incan granary. It was wedged into the side of an intimidatingly steep mountain to store food and make it nearly inaccessible to thieves. Those are not clouds you see, but actually waves of smoke rolling across the valley from a nearby mountain which had just been set ablaze for slash-and-burn farming, employed by the locals. The smell of freshly ignited forest was all around us, and a burning sensation in our lungs was just beginning.
Having met some adventurous travelers on the bus ride there, we challenged one another to reach the top of this mountain ruin and make it back down before sunset.