The so called  'House of Skulls' or 'House of the Dead' at the Neolithic settlement of Çayönü (present-day Turkey).

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The Apotheosis of War (1871) by Vasili Vereshchagin, 

“dedicated to all conquerors, past, present and to come."

Source: Feuilleton

See Also:

Key Democrats Call for Perpetual War as Official U.S. Doctrine