 The Legion of Doom dwelt in a murky swamp and launched their attacks for global conquest from a sinister-looking, swamp-based, mechanical, flying headquarters called the Hall of Doom (which resembled Darth Vader’s helmet) as a suitable contrast with the Super Friends' gleaming Hall of Justice.Every week, the Legion schemed to either get rid of or destroy the Super Friends so they could conquer the world.The Super Friends themselves consisted of 11 Justice League heroes.