We really recommend walking around the national mall which is more majestic at night! We recommend starting from the Washington monument to WW2, Vietnam and taking a break at the Lincoln memorial. Then you can continue through the Korean War memorial and end at the Jefferson! Takes a bit but it never gets old!
One of our favorites! You may need to prebook tickets due to construction but its still free
Mey's favorite growing up. See the hope diamond and meet Henry the elephant. Totally free!
Payton loves the presidential section. And free!
PreBook tickets and pickup at the Capitol visitor center for a free tour. Mey had access to the underground tunnels that connect to the house and senate staff buildings during her first internship!