An An Pentagon, kwartel kan U.S. Department of Defense sa Arlington, Virginia iyo an pighuna na target nin sarong misileng nuklear kan panahon nin Gerang Malipot (Cold War). An sentrong natad kaini iyo an pigaarapod-apod na sona sero, asin sarong isnakan an nakakaag igdi ngonyan, binansagan man ngane na Cafe Ground Zero.