My wife and I (inadvertently) started a quest years ago to visit every state capital and walk trough every capitol building in the United States. Hitting Juneau a year ago completed the journey. I have to put an asterisk on Alaska's building since it was under construction, and we toured the "pretend" building that was being used instead. Many of these trips included Marriott stays, of course.
Onward to visit all the Canadian provincial seats of government, need three more.