I (David Emer) want to try to go to every single U.S. state capital. This web-page gives you information on all the state capitals I've been to.
If you click on the links it will bring you to pictures of the state capital I've been too. My definition of being to a capitol building is if I actually toured the building itself.
Make sure you see A Guide To Seeing Capitols
*capitols cities that are also Amtrak locations
*Boston, Massachusetts-been there but I don't have any photos