Days 1–4: monuments, museums, Capitol Hill, Georgetown, Arlington and Mount Vernon, as in the 4-day plan.
Day 5, morning: the Smithsonian Big 3 Highlights tour — three iconic museums in one perfect morning.
Day 5, afternoon: pure fun at Bubble Planet, the whimsical immersive experience for all ages.
Farewell: one last sunset on the steps of the Lincoln Memorial.
