Here, is one of the few I worked on growing up in the Great state of Michigan. I was an O.S. Ordinary seaman and my job was to help dock the big girl from Ludington Mi. to Manitiwac WI all summer long. If you want to learn some amazing history read about the fleet of the PM steamers. Or Pere Marquette as the fleet were known as. I'm proud to have served for these awesome ships!http://www.absolutemichigan.com/dig/lodging-travel/ss-badger-passing-the-ludington-lighthouse/ Check out the video!
If you like checking out big ships, marinetraffic.com/ais/ is an interesting site. All big (and some even not so big) ships have transponders (AIS-automatic identification system) that tells what the ship is, where it's going, etc.
At this website you can track these ships in real time. It allows you to go to your area and even select what type of ships you want to watch.