1. The HBO series is based on a book
  2. The actor that plays Tyrion is an actual little person
  3. It's a work of fiction
  4. The dragons are what is known as "special effects"
  5. Many of the actors are from a different country than the USA
  6. The "wall" is made of snow
  7. Unlike other shows when the characters die they don't come back as their missing twins
  8. There has been several seasons
  9. It cost a lot of money to make