Phra Viharn is a historic temple located on a cliff in northeastern Thailand, near the border with Cambodia. It is part of the Doi Phra Viharn National Park and is known for its stunning views and unique architecture, which reflects the Khmer style. The temple complex dates back to the 10th century and is dedicated to the Hindu god Shiva. The site has been a point of contention between Thailand and Cambodia due to its strategic location and historical claims. In 1962, the International Court of Justice ruled that the temple belongs to Cambodia, but the surrounding area remains disputed.