Arlington - Virginia, Arlington National Cemetery, USA, Virginia - US State, Architecture
Arlington, Virginia, USA - April 8, 2012. People gathered to watch the changing of the guard at Tomb of the Unknown in Arlington National Cemetery. Arlington National Cemetery covers an area of 624 acres and is the burial site for the remains of over 320,000 servicemen and women who gave up their lives for the United States. It also contains grave sites for some famous people in US history like President John F. Kennedy and his brother.