Next, he showed the girls a narrow Incan street. Both sides of it had high stone walls and the driver stopped so the visitors could walk down a short distance to see the famous twelve-sided stone which was part of it. Each girl counted the sides and marveled at the way the ancient stonecutters had trimmed this enormous rock to accommodate the ones fitted around it. The young tourists noticed that all the stones were so perfectly fitted that there was not one single opening or crack between them. Not even an earthquake could damage this amazing artisanship!