A picture taken on Nov. 15, 2016, shows destruction caused by ISIS at the archaeological site of Nimrud in Iraq.

An Iraqi army soldier walks across the ancient ruins of Nimrud following the recapture of the ancient town on the outskirts of Mosul from ISIS on Nov. 15, 2016.

A picture taken on Nov. 15, 2016, shows destruction caused by ISIS at the archaeological site of Nimrud in Iraq. Antiquities there date back thousands of years.

This photo taken on Nov. 15, 2016, shows a tablet with a picture of the ancient ruins of Nimrud, located some 30 kilometers south of Mosul in the Nineveh province, before they were damaged by ISIS jihadists, superimposed against the current state of the ruins following their recapture by Iraqi forces. 

Iraqi forces announced that Nimrud, which was founded in the 13th century BC and became the capital of the ancient Assyrian empire, was recaptured on Nov. 13 as part of the massive operation to retake Mosul, the last ISIS-held city in the country.

A picture taken on Nov. 15, 2016, shows destruction caused by the Islamic State of Iraq and Syria (ISIS) at the archaeological site of Nimrud, some 30 kilometers south of Mosul in the Nineveh province, a few days after Iraqi forces retook the ancient city from ISIS jihadists.

The remains of a large stone figure of a lamassu, an Assyrian winged bull deity, are piled near the gates of the ancient palace where they once stood at Nimrud, Iraq in this Wednesday, Dec. 14, 2016 photo. Islamic State of Iraq and Syria extremists detonated explosives throughout the palace, destroying its elaborate reliefs showing gods, mythical beasts and kings, and reducing it to a field of rubble.

A picture taken on Nov. 15, 2016, shows destruction caused by the Islamic State of Iraq and Syria (ISIS) at the archaeological site of Nimrud, some 30 kilometers south of Mosul in the Nineveh province, a few days after Iraqi forces retook the ancient city from ISIS jihadists. 

Iraqi forces announced that Nimrud, which was founded in the 13th century BC and became the capital of the ancient Assyrian empire, was recaptured on Nov. 13 as part of the massive operation to retake Mosul, the last ISIS-held city in the country.