ancient Angkor angles appearance archaeological archaeology broken buddhism Buddhist cambodia craftsmanship cultural culture damp decorative design features height heritage Hindu Hinduism historical history lichen mixture monument mosses old ornamental perspectives sculpted sculpture shade shadows shaped stones stonework style sunlight support supportive surfaces temple-complex temples textured textures wall-stones walls weathered Bayon buddha covered historic partial reclining reflective repaired repairs statuary statues Angkor-Wat high jungle pool reflections water black & white greyscale monochrome stairs steep steps artwork bas-relief cambodian carved carvings decorations depictions Designs grainy icon iconic low-relief rough stone surface