The Preah Vihear temple is an ancient Hindu temple complex located on a 525-meter cliff in the Dângrêk Mountains, on the border between Thailand and Cambodia. This magnificent temple is dedicated to the Hindu god Shiva and is renowned for its stunning location and intricate carvings. The history of Preah Vihear temple dates back to the 9th century when construction of the temple began during the reign of King Yasovarman I of the Khmer Empire. The temple was used for religious ceremonies, royal processions, and as a site for astronomical observations. In the 11th century, King Suryavarman II, who also built Angkor Wat, further expanded and enhanced the Preah Vihear temple complex. Under his rule, the temple became a major pilgrimage site for Hindus and was considered a sacred place of worship. Over the centuries, the temple fell into disrepair and was abandoned as the Khmer Empire declined.