7 Key Moments From 7 Locations

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Ready your armor and raise your banners: New episodes of 'Game of Thrones' begin this Sunday, April 6. In the meantime, catch up on the past three seasons with this weekend’s back-to-back marathon on HBO2 -- and the all-new Viewer's Guide, a newly-expanded interactive experience that goes inside the series’ definitive moments. Not sure where to start? Here are seven milestones from around the Known World:

1. The Vale: Death by Moon Door
The seat of House Arryn was home to the show’s first trial by combat. The accused, Tyrion Lannister, was championed by Bronn, a sellsword who hasn’t left his side since. Explore the episode and see how the bond between Bronn and Tyrion was forged.

2. The Twins: An Ill-Fated Pact
The seeds for the Red Wedding were planted along the Trident. In exchange for the Northern army's safe passage across the river, Robb Stark's mother Catelyn promised Lord Walder Frey that both Arya and Robb would marry into his house. Check out the map to better understand why the Starks agreed to the deal.

3. The Iron Islands: A Hostage Turns Hostile
Theon Greyjoy alienated the family that raised him -- and his biological father -- when he seized Winterfell for the Ironborn. Why was the Greyjoy heir raised in the North? Read up on the Greyjoy Rebellion.

4. King's Landing: A Fiery Siege
At the Battle of the Blackwater , Stannis Baratheon led a naval assault on the capital, only to be ambushed by a shipload of wildfire. Go behind the scenes to learn how the production team armed both sides of the battle.

5. Beyond the Wall: Mutiny and Murder
While seeking shelter at Craster's Keep, a band of disgruntled Night's Watch men including Rast and Karl led a mutiny that killed both their wildling host and Lord Commander Mormont.

6. The North: The Red Wedding
The massacre at the wedding of Roslin Frey and Edmure Tully effectively ended the War of Five Kings, and installed Roose Bolton and Walder Frey as high lords in the North and the Riverlands. Executive Producers D.B. Weiss and David Benioff's discuss this all important turning point. 

7. Essos: Dragons Rise Again
Daenerys Targaryen has left a trail of fire and blood while traversing the East to build her army. Follow Dany's journey across the continent including the most recent stop for the Mother of Dragons, Yunkai