A pop culture legend has left us. Stan Lee, the man responsible for creating legendary characters like The incredible Hulk, Fantastic Four, Spider Man, X-Men, Thor, iron Man, and Captain America has passed away. Lee passed away early Monday at  Cedars-Sinai Medical Center, according to The Hollywood Reporter. Lee began creating Marvel characters in 1939. He is survived by his daughter J.C. and younger brother Larry Lieber.