The National Archives Building is located in Washington, D.C., and serves as the official repository for the United States' most important historical documents. It houses the original Declaration of Independence, U.S. Constitution, and Bill of Rights, among other significant records. The building was completed in 1935 and is known for its impressive neoclassical architecture. Visitors to the National Archives can explore various exhibits and view these foundational documents. The building also offers educational programs and resources for researchers, making it a vital institution for preserving American history and promoting public understanding of the nation's heritage.