The 'height' of the ceiling is eight feet. [=the ceiling is eight feet above the floor; the ceiling is eight feet high]
It was 'the height of' stupidity to quit the team. [=it was extremely stupid to quit the team]
He was 'at the height of' his fame when he died. [=he died when he was most famous]
(..) And he's given me permission to take Sansa as my wife. - (screams) - You'll learn that what I lack in height, - I make up for in appetite. - (screams) and go rehearse our wedding night. - (music playing) - (applause) (..)2016 TvShow: Game of Thrones Title: The Door Season: 6 Episode 5