ancient Angkor Angkor-Wat angles appearance approach archaeological archaeology cambodia color colors colour colours contrast contrasting craftsmanship cultural culture design entrance heritage historical history mixture moat monument old paved pavement paving perspectives reflections shaped stones stonework style surfaces temple-complex textured textures walkway water weathered Amman antique arabia arabs architectural architecture Asia blue capital citadel city classical day east empire famous historic jordan landmark middle monumental museum order past period religion Remains rock roman ruin ruins Sacred sanctuary site sky stone temple time urban wall column columns flower hand Hercules blocks path paving-blocks pitted rough solid surface