Howling Fjord is one of two starting points in Northrend. Surrounded by cliff edges (it's quite a fjord!), the zone is designed to get players into the game quickly. Howling Fjord houses one of the expansion's dungeons, Uthgard. Stockton shows an in-game video flyby of the zone, then gives you an insider look at Blizzard's zone design process.
Continue on to Borean Tundra, another one of the expansion's starting points.