The Greater Cleveland Aquarium is a nice place to spend a couple of hours in the downtown Cleveland/Flats area. It is expensive, in my opinion for what is actually there. It is family friendly, and children enjoy it. The building is really cool - and sharks are always fascinating, You can touch a ray, have fish, sharks and rays swim over your head in the tunnels, and also feed the rays - but be mindful of feeding times. Costumed staff/tour guides add to the charm factor. The gift shop has a nice assortment of souvenirs.