A tour of the White House is a great experience. It’s something that you should do if you get the chance. I have been in DC a couple of different times, but both times no tours were available the days I was free to go. Maybe next time. There is a lot of history around DC. Not just the White House, but all along the Mall. The White House is tough to get into now (for good reason), but the Smithsonian and all of the memorials and other museums make a DC trip worthwhile if you are into the history at all.