
but you'll be able to come visit me
at Castle Black when you're better.
Game of Thrones Season 1, Episode 2

to take back the CASTLE where you grew up.
Game of Thrones Season 5, Episode 3

I'm sending you back to Castle Black.
Game of Thrones Season 5, Episode 9

Stannis Baratheon garrisons at Castle Black.
Game of Thrones Season 5, Episode 4

I stayed at Castle Black.
There's no women allowed there.
Game of Thrones Season 6, Episode 3