It's the famous five-headed horse bas-relief carving located at the Terrace of Elephants in the Angkor Thom complex near Siem Reap, Cambodia.
The carving shows a majestic horse with five distinct heads, richly adorned with an ornate belt and royal jewelry, accompanied by smaller figures of kneeling warriors or attendants carved beneath its legs. It dates back to the late 12th century during the Angkorian Empire.