The Temple of Preah Vihear, a unique architectural complex of a series of sanctuaries linked by a system of pavements and staircases on the top of the mountain, is a masterpiece of Khmer architecture, in terms of plan, decoration and relationship to the spectacular landscape environment. The Preah Vihear Temple is the culmination of Khmer temple architecture, reflecting its integrity and authenticity, in terms of the way the buildings, their materials, the details of its decoration. The Preah Vihear Temple is indisputably one of the greatest World Heritage of humanity.