The Super Museum and Ruby Falls
- Episode aired Apr 5, 2019
- 20m
A small town in Illinois is the unlikely home of the world's most famous superhero and a towering mountain in Tennessee holds beneath it a cavernous wonderland.A small town in Illinois is the unlikely home of the world's most famous superhero and a towering mountain in Tennessee holds beneath it a cavernous wonderland.A small town in Illinois is the unlikely home of the world's most famous superhero and a towering mountain in Tennessee holds beneath it a cavernous wonderland.