What do you think about when you hear the word "internet"? Instagram? Youtube? Facebook? These are the first things that come to our mind when we hear that word. But internet is not limited with these things.
Like everything else, internet also has a dark side that not everybody can reach.
You probably heard about deep web. This name is given for the dark side of the internet. Most internet users don't know deep web because searching tools doesn't let you search for these web sites.
We can only reach 10% of the internet.
All the bad and illegal things are done through deep web. For example: serial killers are waiting there for you. They are ready to kill anybody and record it as a proof.
There are some search engines which can reach to deep web. But it is very dangerous as your pc has no protection.
So just don't try to reach there just because you are curious.