You know, that's an amazing video. The guy that actually went to hell says in his book,
23 Minutes In Hell: One Man's Story About What He Saw, Heard, and Felt in that Place of Torment, by Bill Wiese, says that the hole to hell that he fell through is about 35 feet wide - pretty close to that video.
The book is worth a read. God doesn't not want anyone to go there and wants to warn (NOT condemn) people from going there by receiving Jesus.
