HELL - Why was it made?
From Christiananswers.net: "Matthew 25:41 tells us that Hell was prepared for the Devil and his angels. That’s why such a place was prepared in the first place. It was not by original plan and design for men and women--for human sinners. It was prepared for the Devil and his angels. The Lord Jesus tells us that Himself." (See: http://christiananswers.net/q-grace/hell-origin.html)
For those who reject God's forgiveness and His plan of salvation, they will spend an eternity in Hell. An eternity separated from God in a place of eternal torment. The Bible describes Hell as a lake of fire (Rev 19:20, 20:10,14-15, 21:8, Luke 16:24), a place of torment (Luke 16:23,28), "where their worm does not die, and the fire is not quenched." (Mark 9:48), and thirst is never satisfied (Luke 16:24). It also says there will be weeping and gnashing of teeth (Luke 13:28, Matthew 8:12,13:42, 13:50, 22:13, 24:51, 25:30).
Do you know with 100% assurance where you will be spending eternity? If not, you can know for sure. The Bible says that those who have repented (turned from their sins) and trusted in Jesus Christ for forgiveness of sins have this confidence. They have been "born again" and have assurance of eternal salvation. Not because of anything good that they have done, only by God's grace alone."For by grace you are saved through faith, and this is not from yourselves; it is God's gift— not from works, so that no one can boast." (Ephesians 2:8-9)
Heaven
The Bible says that those who have believed in the Son of God know that they have eternal life. Those who have not believed in the Son of God who is Jesus Christ - do not."And this is the testimony: God has given us eternal life, and this life is in his Son. Whoever has the Son has life; whoever does not have the Son of God does not have life. I write these things to you who believe in the name of the Son of God so that you may know that you have eternal life." (1 John 5:11-13)