Language-learning startup Duolingo wants you...to move to Pittsburgh.

For commuters sitting in traffic on Highway 101, heading home to tiny apartments that eat up most of their paychecks, a new bright-green billboard offers yet another reason to pack up and leave the Bay Area. The billboard was erected last week by Pittsburgh, Pennsylvania-based startup Duolingo - the maker of a popular online language-learning platform and mobile app - to lure tech talent away from Silicon Valley and into the Steel City.