In the same spirit, you might also want to visit the U.S. Supreme Court. There is a guided tour/presentation and then self-guided exhibits. There is even a gift shop for that lawyer in your life!

I don't know if tours are still possible, but you may want to visit the Eisenhower Executive Office Building (formerly Old Executive Office Building), which is located next door to the White House. This building includes the official office of the Vice President, etc., and is worth seeing. Tours were given only on Saturday morning and by reservation. Don't know if there are any citizenship requirements. Don't know if the tours are still available.