Unidentified men with the terror group ISIS went into the Mosul museum with sledgehammers and other tools.
They shattered their bodies and destroyed their faces. ISIS' media office posted the video on Facebook, with the explanation that god ordered the vandalism.
"Their interpretation of the Koran leads them to want to destroy what they consider to be idols," said University of California, Berkeley assistant professor of near eastern archaeology Benjamin Porter.
There are also reports they burned thousands of books and manuscripts dating back to the Ottoman Empire.
UNESCO calls it, "One of the most devastating acts of destruction of library collections in human history."