Countries

Cambodia

Angkor Wat is the largest religious monument on Earth, a single temple in a capital city that once ruled territory spanning four modern countries: from 802 to 1431, the Khmer Empire built stone monuments across what are now Cambodia, Laos, Vietnam, and Thailand, before the temples were swallowed by jungle for centuries.

Angkor Wat temple, Cambodia, reflected in its surrounding water at dawn

Angkor Wat at dawn

Photo: yeowatzup, CC BY 2.0

Blue bands top and bottom stand for the monarchy, red for the nation. The white temple is Angkor Wat, the country's defining monument, making this the only national flag in the world centered on a real building.

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