The bus eases away from the Hyatt Regency on New Jersey Avenue and the city stretches open like a map under glass—marble columns, bronze statues, and avenues that keep score of American history. On a four-hour loop through Washington, D.C., a live guide threads context into each stop: the White House’s south front, the Capitol’s west lawn, the Lincoln Memorial’s long stare. Passing by Arlington, the Vietnam and Korean War Memorials feel close enough to touch; the Potomac below seems to tug at the edges of the city, daring visitors to learn what lies beyond the monuments.