What would happen if someone/thing went through a black hole and what sorts of things would be there?!

Question: What would happen if someone/thing went through a black hole and what sorts of things would be there?!
- Keywords:
  black hole
Asked by Science Girl!!! to Ashley, Bernard, Carsten, Monique on 9 Nov 2015.
- Monique Henson answered on 9 Nov 2015:
  
  I’ll be honest – I don’t really know. Since we’ve never been in a black hole, we don’t really know if our ideas about them are right. Some people have been doing some work on this though, and this video explains it really well.
  
  Hope that helps!

Question: What would happen if someone/thing went through a black hole and what sorts of things would be there?!