Cleveland Museum of Natural HistoryHome to a plethora of exhibits on topics from health to anthropology to geology. Among these are an interesting collection of dinosaur skeletons, including "Happy," a 70-foot-long "Haplocanthosaurus delfsi" skeleton that includes the oldest dinosaur bone on display in the world; "Dunk," formally called "Dunkleosteus terrelli," a native Cleveland fish from 360 million years ago; and a prehistoric mastodon that lived in Johnstown more than 10,000 years ago.
