Sure, we only had a few days left on our US Visa, but it would have been poor form to leave without visiting Yellowstone National Park. So we took another detour.
Three years ago, we were sitting looking over Machu Picchu. Sick of shuffling around like we were in a busy shopping mall, we had opted for hiding from the morning crowds in the quarry. We sat down and scoffed our Snickers bars we had carried with us for just such an occasion.