The stone ruins of Choquequirao Archaeological Park’s main plaza spread out behind me in the remote Peruvian Andes. The site, which is west of Cusco, was a former Inca city. The arduous trek to Choquequirao is considered to be one of the greatest adventures in the world. Click the above image to enlarge, click to read my travel guide “How to Take a Self-Guided Tour of Choquequirao,”, or click to view my high-resolution photo gallery.