People aren't sent to hell for eternity they send themselves there through separating themselves from God. And so they will suffer the metaphorical burning of the anguish of the soul. Or whatever, this isn't actually in the bible.
This guy spent 23 minutes in hell. He made a lot of money from his ordeal though. This wasn't metaphorical but real fire, 12K degrees of heat if you're actually in the fire apparently.
I posted this video before but I think its fantastic.
Here's another good description of hell.
Ah when you're an atheist (or anything but a follower of Christ) on your deathbed you'll be crying out for Jesus oh yes you will, like these guys here look. Pure gold.