ancient Angkor Angkor-Wat angles appearance approach archaeological archaeology blocks cambodia color colors colour colours contrast contrasting craftsmanship cultural culture design heritage historical history monument old path paved pavement paving paving-blocks perspectives pitted rough shaped solid stones stonework surface surfaces temple-complex textured textures walkway weathered artwork bas-relief buddhism Buddhist cambodian dancers dancing decorative depictions Designs features figurines frieze grainy Hindu Hinduism icon iconic low-relief ornamental sculpted sculpture stone style temples