Game of Thrones continues to impress us with its plot twists. And stories from behind the scenes of our favorite TV show can be just as interesting as the main plotlines.

Enlighten explored some fun facts and figures about the series that you haven’t yet heard. Take a look below!

21. You can learn the Dothraki language.

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Do you want to speak like Khal Drogo? It’s easy! The Dothraki language has a vocabulary of over 3,000 words and continues to grow. The language was created by David J. Peterson for the TV series. The success of Game of Thrones increasedthe number of people who want to learn Dothraki.

20. Serve your own pigeon pie.

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We all remember the famous pigeon pie served at King Joffrey’s wedding feast. The recipe for the pie was not created by George R. R. Martin: he borrowed it from the 16th-century author Giovanni de’ Rosselli. On the set of the series, the pie was real.

19. Game of Thrones is becoming a Harvard class.

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A Game of Thrones-themed history course will examine the history and culture of the “medieval world” that the series relies on. Students will learn medieval history through the lens of one of TV’s biggest phenomena.

18. It’s the most pirated show.

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Game of Thrones hit all the possible ratings and became the most pirated TV series of all time. A huge amount of people illegally downloaded the show from torrent sites. For several years in a row, Game of Thrones hastopped the list of the most pirated shows.

17. Mother of slugs.

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In 2013, scientists explored Brazilian shores and discovered a new species of sea slug. The discoverers chose a very unusual name: Tritonia Khaleesi, after the title “Khaleesi” used by the fictional character Daenerys Targaryen.

16. No audition for Tyrion.

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Peter Dinklage did not even have to audition for the part of Tyrion Lannister. The directors had him in mind before the start of the show. He also suggested to producers that his friend Lena Headey be cast as Cersei Lannister.

15. A mixtape dedicated to Game of Thrones.

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HBO recorded an official album of rap songs dedicated to Game of Thrones.

14. HBO sells the Iron Throne.

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The directors of the show sell replicas of the actual Iron Throne for $30,000 (height: 7′ 2″; weight: 350 pounds). Great! Now anyone can feel like the King of the Seven Kingdoms.

13. Gandalf’s sword is in the Iron Throne.

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A replica of Gandalf’s sword from The Lord of the Rings and The Hobbit is forged inside the Iron Throne.

12. 70 ways to say “Hodor.”

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Kristian Nairn might not have the most complex lines on the show, but he sure had to practice the pronunciation of “Hodor.” He mastered 70 ways of pronouncing his character’s name depending on his mood.

11. Madonna goes full Khaleesi.

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Madonna is actually another Game of Thrones fan, like all of us. She asked the directors of the show to lend her a famous Daenerys costume to celebrate the Jewish holiday of Purim.

10. A message in Sansa’s dress.

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The costumes and dresses in the TV series are skillfully made and perfectly suit the occasions for which they are worn. There is always an implicit meaning to every outfit. For example, Sansa’s clothing has sent very deliberate messages to her allies and her enemies on multiple occasions. Her wedding dress tells us her life story: a trout and a wolf on the belt mean that she was born in House Stark and House Tully. The lion on the back means that she now belongs to House Lannister.

9. Maester Aemon’s actor is also blind.

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Peter Vaughan, the actor who played Maester Aemon, was almost blind like his character on the show. Vaughan recently died with his family around him. Now his Watch is over.

8. Myrcella and Tommen date in real life.