'Game of Thrones': Beyond that wall, it's Iceland

HBO does not want "Game of Thrones" fans to forget that the show is returning April 1.

As if they could.

Following last week's  photos from the new season, the network's now released another teaser, behind-the-scenes video extolling the virtues of Iceland, which, it turns out, is what's beyond that humongous wall George R.R. Martin constructed around his imaginary kingdom.

It looks beautiful. And cold. Very, very cold.