If anyone wants to visit a "living" old-time amusement park: Go to Pittsburgh in the summertime, and visit Kenneywood

It's a "trolley park," set up to increase ridership way back when but surviving quite nicely. As I recall, it's SE of downtown, on the south bank of the Monongahela.

It's got an amazing selection of roller coasters, including some well-kept old wooden ones, and a real bowel-emptier that plunges over the riverside cliff. Nice picnic areas, too, set up for visiting kids, union groups, etc.