The Khmer Empire was one of the most powerful civilisations in Southeast Asia. Located in what is now Cambodia, it flourished from the 9th to the 15th century. The empire ruled over or vassalized parts of modern-day Laos, Thailand, Vietnam, Myanmar, and Malaysia.
Its greatest legacy is Angkor, the site of its capital city. Angkor bears testimony to the Khmer empire's immense power and wealth, as well as the variety of belief systems that it held.