where is the pentagon located 9/11

The Pentagon is located in Arlington County, Virginia, just across the Potomac River from Washington, D.C. It serves as the headquarters building of the United States Department of Defense. The building is situated near Pentagon City and Crystal City in Arlington, with Arlington National Cemetery to the north. Despite its physical location in Virginia, the Pentagon has Washington, D.C., ZIP Codes. Its geographic coordinates are approximately 38°52′15″N 77°03′18″W.