#OnThisDay in 1968 #celebratingTheir10thYearInComics #TheLegionOfSuperHeroes debuted their #NewLegionHeadquarters in #AdventureComics #367 abandoning #TheUpsidedDownRocketHQ for a #moreModernSprawlingComplex that gets buttoned up upon its final completion thanks to #TheMiracleMachine