The New York Hall of Science occupies one of the few remaining structures of the 1964 New York World's Fair in Flushing Meadow-Corona Park. Today, it stands as New York City's only hands-on science and technology center. Over 400 hands-on exhibits explore biology, chemistry, and physics. The Hall of Science has been in a continuing program of expansion and renovation since 1979. Lilker Associates was engineer for the Beyer Blinder Belle master plan to modernize the facility. Our work included the design of all MEP/FP systems for the first phase of expansion which included a new main entrance rotunda, an auditorium addition, dining area, gift shop, new lobby and replacement chillers for the entire facility. As a separate project we also provided MEP design services for a unique outdoor science playground with interactive educational water exhibits for young visitors.