The bus careened up the narrow one-lane switch back road. The densely forested road made visibility almost impossible, but at each turn, the driver somehow managed to narrowly miss the oncoming buses filled with tourists just like us. I was convinced our driver possessed some ancient Incan secret for predicting oncoming traffic. At the top, we unloaded and filed into line to enter the historic site that ranks high on most travelers’ bucket lists. After paying the fee and getting stamped, we headed up the crowded trail to get our first glimpse at the Lost City. We formed a single file line and followed a path along a meticulously built…