Architectural Forum magazine described it as, "Looking like some strange craft spun down to earth from outer space... St. Louis's new planetarium perches gracefully on a rise in ... Forest Park".The unusual request for an "open" planetarium theater called of the extremely bright stellar projections, a challenge outstandingly mastered by ZEISS fiber-optic projectors.[5][page needed] On November 2, 1991, as part of a $34 million expansion, a new building opened across from the Planetarium south of I-64, on Oakland Avenue, increasing the size of the Science Center by a factor of seven.[5][page needed] One of the most recognizable features of the St. Louis Science Center is the five-story domed OMNIMAX theater, which shows a variety of educational films and documentaries year round.[11] The 2018 WeatherReadyFest event was held at the St. Louis Science Center featuring talks, demonstrations and displays from the National Weather Service and other government and private agencies.