Do you remember any exhibits from that time that aren't in place today?
If you read "Mr. Wilson's Cabinet of Wonder: Pronged Ants, Horned Humans, Mice on Toast, and Other Marvels of Jurassic Technology," Lawrence Weschler's superb 1995 book about the museum with extended interviews with Wilson, you will find it hard not to want to visit.
https://www.amazon.com/Mr-Wilsons-Cabinet-Wonder-Technology/...