@foxnews: America's story is on display in the heart of the nation's capital. From the SpaceX Polaris Dawn spacesuit worn by mission commander Jared Isaacman to a Falcon 9 rocket model, the National Mall is showcasing American innovation alongside exhibits celebrating the country's 250th anniversary. Visitors praised Washington, D.C. as clean, beautiful, and the perfect place to celebrate the nation's history, while administration officials highlighted efforts to restore and beautify the capital ahead of the Fourth of July.