While baseball games in D.C. or architecture tours in Chicago might seem like no-brainers, these types of activities will require an ample amount of planning in advance and will also be subject to factors beyond your control. (And you do not need the extra stress!) Instead of attempting to book them for guests, offer them as suggestions for things to do on your wedding website or in your wedding welcome letter. That way, guests who are interested can still make them happen on their own time.