You can browse the exhibits at German Mining Museum, a museum with a storied past, during your travels to Stadtpark. Experience the area's theater scene and museums.
If you want to see a show while you're in town, try and grab some tickets at Starlight Express Theater in Bochum Mitte. If you enjoy the show and want to see another, Jahrhunderthalle, Bochum Civic Theatre, and Kleines Theater Herne are not far.