The location of the Pentagon and the White House

The Pentagon is the office building of the US Department of Defense. It is located in Arlington County, Virginia, southwest of Washington. Named after a pentagonal building, it is the largest single administrative building in the world. The White House is located at No.0/600, Pennsylvania Avenue, northwest of Washington, D.C., covering an area of more than 73,000 square meters.

The United States of America (hereinafter referred to as the United States) is a federal constitutional country, which consists of Washington, D.C., 50 states, Guam and many other overseas territories. With a land area of 9.63 million square kilometers (plus the United States sovereign part of the Great Lakes and coastal waters such as estuaries, harbors and inland seas) and a population of 320 million, it is an immigrant country with a common English.