In November of 2013, I took my dad to Gettysburg, Pennsylvania, as a birthday present to him. It was the 150th anniversary of the Gettysburg Address. Dad had never been to Gettysburg. He did have the Address somewhat memorized from childhood, and was excited to spend a long weekend with his daughter (at least, that's what he told me). I invited my older brother along, and the three of us met up in Chicago. We flew to Washington DC, then rented a car, and drove to Gettysburg.
Smartly, we didn't go on the weekend of the 150th anniversary, choosing to go the week after: fewer people, less crowding. Go us.