"Game of Thrones" is anything but a magical mystery tour, but when magic does arrive -- as it must -- then it is memorable indeed.
The world of "Thrones" is a real one until the other world of wargs, "greensight" and whatever it is that Melisandre does intrudes. There have been many instances over the first four seasons. Just a few notables here.
Dragons ("Walk of Punishment," season 3): The great and enduring symbol of all that is otherworldly and magical in "A Song of Ice and Fire," and of course "Game of Thrones." A memorable appearance is in the beginning of season 3, when Daenerys arrives with her restless brood at Slaver's Bay.
Wights ("Winter is Coming," season 1): Wights are the zombies of "Thrones." One was spotted just minutes into the first episode of the first season. Ominous and scary ... also fatal for the witness.
Three-eyed raven ("Cripples, Bastards and Broken Things," season 1): Ah the great and mysterious three-eyed raven, which actually appears in human form in the fourth season (played by Struan Rodger). Otherwise, he was in this episode, on the head of a direwolf statue. Quoth the raven, "I have been watching you. All of you. All of your lives, with a thousand eyes and one."
Greensight ("Fire and Blood," season 1): Bran Stark has this special talent -- a magical ability to see the future. He had his first prophetic dream -- about his doomed father, Eddard Stark -- in this episode.
Manticore ("Valar Dohaeris," season 3): This bizarre creature may be magical, but is definitely poisonous -- someone tried to use one to kill Dany.
Wargs ("The Rains of Castamere," season 3): Wargs are real people who can do some very unreal things, notably enter the minds of animals and look at the world through their eyes. It's a nice trick if you can do it -- not many can. In "The Rains of Castamere," Jon Snow killed Orell, but in fact didn't because Orell warged his way into an eagle first. Bran Stark, of course, is the most famous warg of them all.
Giants ("Valar Dohaeris," season 3): Like dragons, these are supposedly mythical -- but Jon Snow, who sees one working away in the free folk camp, knows better. They are huge and hairy and peaceful, until such time as they are not.
Children of the Forest
Children of the Forest ("The Children," season 4): Who are these mysterious, childlike figures? Ghosts? Magical beings? Do these even exist? Oh, yes, they do.
Wildfire ("Blackwater," season 2): Only the Alchemists' Guild knows the ingredients of the wildfire secret sauce -- which can burn water, or appear to. It got a starring role in the Battle of the Blackwater.
House of the Undying
House of the Undying ("Garden of Bones," season 2): This notable tower is where the Warlocks of Qarth -- you know them by their blue lips -- live. They do all sorts of magical things, abetted by their consumption of a potion called shade of the evening.
Qyburn ("Kissed by Fire," season 3): Played to creepy perfection by great English actor Anton Lesser, Qyburn got his closeup in the third season when he amputated Jaime's hand. But who is this oddball? His magic will be revealed slowly, but it has to do with the dead.
Dragonglass ("Second Sons," season 3): A powerful and mystical piece of "glass" indeed, this may be the only weapon known to kill White Walkers, as Sam Tarly did so memorably in "Second Sons." The undead wraith then shatters into shards of ice.
White Walkers ("The Night Lands," season 2, "Oathkeeper," season 4): The great mythological race from the time of the First Men, except that they are not the stuff of myth but the stuff of nightmares. They reanimate the dead and kill the living. They have been sighted throughout -- one attacked Sam -- but the one in "Oathkeeper" was most vivid of all: He or it takes the last son of Craster deep into the far north. Another walker touches it -- and the babe's eyes turn bright blue.
The Shadow ("Garden of Bones," season 2): Melisandre (Carice van Houten) gives birth -- which isn't even remotely the right word but under the circumstances will do -- to a shadowy figure, which goes on to kill Renly Baratheon.