The United States Capitol Dome, symbol of American democracy and world-renowned architectural icon, was constructed of cast iron more than 150 years ago. The Dome had not undergone a complete restoration since 1959-1960, and due to age and weather was plagued by more than 1,000 cracks and deficiencies. With the support of the United States Congress, hundreds of expert craftsmen worked day and night to restore the Dome to its inspiring splendor. This video celebrates the successful completion of this once-in-a-generation project: www.aoc.gov/dome