Photography is the art, application, and practice of creating durable images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. It is employed in many fields of science, manufacturing (e.g.,...

Etched into the mountainside just behind the Pisac village, ancient Incan ruins reveal themselves as stone buildings and towers rise out of the steep slopes. The ascent is treacherous as tight pathways wind around rocky edges. Just beyond the Incan archaeological ruins the trail leads to an even...