Really cool place to visit if you have the whole day put aside. It's a little bit of a drive but worth it, the historical sites are in very good shape and there is a lot of room for exploration. You can go inside of many of the old buildings, though they vary from abandoned to having period appropriate furnishing; which also varies because the Fort was has been in use since 1855). Since it is such an open exhibit, please be kind to the old buildings, the staff works very hard to keep everything in good shape.