Thanks to the brilliant improvised line by Robert Downey Jr. in Iron Man, in which Tony Stark admits to being a superhero ...

Redditor [Lord_of_Bone] — seizing at that goal — has built himself an Iron Man mask with an integrated HUD! Relying on a conceptually similar project he’d previously built, much of the code ...

They both wear iron masks. One is a genius, billionaire, playboy philanthropist. The other is a genius, ruler, sorceror megalomaniac. On paper, Iron Man and Doctor Doom could not be more different ...