If you have never been through the 505, go up to Museum of Science and Industy in Chicago. Well worth the tour through her.
I went through her as a kid of 14-15 when Mom sent me back to visit the aunts and uncles in that area in '68 or so. Man what a cramped boat even for a kid my size then. At 6' plus now and 200 lbs, I almost wonder if I could navigate through her now.