3) His home
Doctor consider New York as his home what Strange call it Sanctum Sanctorum is a real world address. It is located at 177A Bleecker Street in Manhattan’s Greenwich Village. It does not look as cool as it looks like in comics.
4) Doctor Strange has easier been mentioned before the year’s debut
The 2016’s Doctor Strange movie is the first onscreen appearance of Doctor Strange, but he was earlier mentioned in 2014’s Captain America: The Winter Soldier, where a HYDRA agent mentioned Stephen Strange during a revelation.
