TV series example of the word

The Big Bang Theory Season 7, Episode 6
♪ We built the Wall ♪ <i>We built the pyramids</i> ♪

The Big Bang Theory Season 5, Episode 10
♪ We built the Wall ♪ ♪ <i>We built the pyramids</i> ♪

Game of Thrones Season 7, Episode 5
My scouts found them a mile south of the Wall.

Game of Thrones Season 3, Episode 7
I know you cut me loose on the Wall.

Game of Thrones Season 5, Episode 1
They were born on the wrong side of the Wall.