Angkor Wat is the obvious starting point, its five towers and moat-ringed causeway giving the whole trip its iconic image, and arriving before dawn for sunrise at Angkor Wat rewards you with the silhouette turning gold over still water. From there, Angkor Thom's walled city leads to Bayon Temple, where hundreds of serene stone faces gaze out from every tower, a mood entirely different from Angkor Wat's grandeur. Together these four sites cover the essential range of Khmer temple architecture within a compact, easily arranged single day.