Anyone who likes to watch fish, especially the rougher sorts, or who's interested in the Mississippi, history, or riverboats old and modern, ought to take a trip to Dubuque, IA and the National Mississippi River Museum. It's a great place for kids, too.
For me the biggest attractions are the giant glass-walled tanks full of fish and other creatures. There's a tank where you can (after washing your hands) touch sturgeon that are swimming around. There are a couple aquariums with alligators (including an albino). There's a marsh tank with bowfin, quillback, panfish and others. Another tank has bonnethead (similar to hammerhead) sharks. Best of all is the main tank, which houses huge cats of several species, sturgeon, 2 or 3 kinds of gar (including alligator), various carp-like fishes, paddlefish, alligator snapping turtles and others. I took some video with my digital camera. It's on youtube. There are occasionally human reflections on the glass, but none are me, so I don't feel guilty about it.
http://www.youtube.com/watch?v=iuVh2BWmUoQ
This tank also has a concave hemispherical window you can get inside to watch the fish. I didn't take any video through it, though.
There's also a group of otters you can watch playing/fighting, both inside and outside.
The museum has an old paddlewheeler you can wander around on, and a simulator where you can try your hand at driving a towboat with a load of barges. There's a couple of displays where kids can create floods and watch erosion. Right now there's a venom exhibit with lots of snakes and other poisonous creatures.
There's a library there too, geared toward river research. I don't know, but I'm guessing it's largely historical. I'm told that there's lots of scientific stuff too, and I'd hope that includes fish.
There is, of course, a museum store.
Admission is $10 for adults. Don't know about kids, as mine got in free because my mom gave them memberships when they were born.
Might be cool to visit in the winter to get a fish fix without ice. Also, there's an indoor waterpark nearby if you've got kids.
And at any time of year there is ton of good fishing around Dubuque. Trout streams like Catfish Creek and many across the border in Wisconsin, the Mississippi and many backwaters and sloughs, lots of lakes, etc. For the non-fishers there are all kinds of antique stores, beaches and such.
I didn't intend this to be a commercial for Dubuque. Oh well. It's a pretty interesting town and area. I lived there for a couple years in the early 90s and unfortunately didn't fish much at all. Stupid of me.
Olaf