Acclaimed photographer Martin Gray visited 80 different countries to capture these remarkable images. This is the largest and most beautiful collection of sacred sites ever photographed. Acclaimed photographer and anthropologist Martin Gray spent the last 20 years on an amazing pilgrimage, visiting 1000 sacred sites in 80 countries. His journey unfolds in remarkable images that reveal how devoutly cultures everywhere worship our Earth. From Tibet's Potala Palace to Hawaii's Mauna Kea, these are the awe-inspiring places from which all of the world's great religions sprang.