Things to Do in Washington DC Overview: America’s Capital Destination Guide By Travel Tourister | Updated June 2026 Quick Answer: Washington DC (U.S. capital 700,000 population, free Smithsonian museums 19 major institutions, National Mall monument concentration, 300+ years American history, government buildings accessible, safe tourist areas, walkable neighborhoods concentrated, moderate cost $40-70/day realistic, year-round … Continue reading Things to Do in Washington DC 2026: Complete Travel Guide