How great was "The Great Flood" really?

How far did the waters really reach? Were there truly no survivors outside of Noah's family? I thought it was only 2 of every animal!? We've all heard this story in Children's Church, but there are greater details than we often dig into and we seem to forget to revisit stories that we feel like we've heard. Today, lets's dig back into a classic bible story and ask some of those harder questions.