The Tom Ridge Environmental Center at the entrance to Presque Isle, Lake Erie was the place we went to today with a fossil we found about 30 years ago. There was a fossil show there today, and anyone could bring a fossil to have the professor go over it and tell you what it was. Ours is 5-6" long and turned out to be a sponge fossil ( Clathrospongia) that lived around 364 million years ago in saltwater. The place we found it was in a shale rock bank where the fresh water cascaded over the top. No saltwater for many many 100's of miles.
A ride to the top of this tower and you can see over to Canada across Lake Erie on a clear day. Today was not that kind of day. Way too foggy, but you can see below the Ravine Flyer roller coaster which is ranked as the 6th best wooden coaster in the world.