(On the Bible) It is full of interest. It has noble poetry in it; and some clever fables; and
some blood-drenched history; and some good morals; and a wealth of obscenity;
and upwards of a thousand lies.
https://en.wikipedia.org/wiki/Letters_from_the_Earth
So?
So Mark twain is not an unbiased source for accurate information about
the truth of Christianity. Asking Mark Twain what he thought of Christianity
is like asking The Joker what he thinks of Batman. They are sworn enemies.
______
Also Hell is described as a place of untold agony and suffering.
So travel agents would go broke offering 14 day trips to Hell.
You used the word "Hell" and all we know about "Hell" is what
the New Testament says about it, so we have to go with that.
Otherwise "Hell" can be anything you want it to be, for example
"Hell" can be an Ice Cream Parlor if you say it is that.
Regarding what Heaven will be like:
think of a highly advanced Earthly human civilization
that is totally free from all Sin and the bad effects of Sin
and that will give you a picture of what Heaven will be like.
Education
Philosophy
Literature
The Performing Arts
Music
Visual Arts
Museums
History
Travel
Exploration
Law
Archeology
Math
Languages
Inventions
Creativity
Art classes
Movies
Plays
Grand musical presentations
Opera
Ballet
and thousands of other higly interesting areas of human knowledge
all in a place that is totally free from the Sin Principle and its destructive
effects.
There will come a time when humans will go "off the charts" in creativity.
All that up there is nothing that you want to "say no to."
Best
JAG