• Explore Union Station, Amtrak’s headquarters and the railroad’s second-busiest station, with its imposing façade and elegant interior that features expensive materials such as marble, gold leaf, and white granite.

• Walk through the architecturally stunning United States Capitol Building and admire the Brumidi Corridors and historic Capitol Dome. Sit in the Senate or House galleries and watch Congress in session, then head outside and look at the Statue of Freedom that crowns the dome.

• Visit the imposing Supreme Court, the highest federal court in the United States, and its classical Roman temple-style building that features the iconic flight of broad steps and the portico of tall Corinthian columns that define its monumental entrance.