We listened to Simon & Garfunkel’s version of El Cóndor Pasa – originally a Peruvian folk song, which means “The Condor Goes By” – while we were climbing passes higher than 14,000 feet (or 4,000 meters) and visited cities like Cusco and Puno, right at Lake Titicaca. Tomorrow we’ll enter another part of the ancient Inca Empire – Bolivia.