Pacific Science Center (1962 World's Fair arches and interactive exhibits)

The Pacific Science Center occupies a distinctive set of concrete arches built for the 1962 Century 21 Exposition and is located on the Seattle Center campus. The center operates hands-on science exhibits, a tropical butterfly house, and an IMAX theater, and hosts rotating educational programs and public events. Its Mid-Century modern arches are an often-photographed architectural feature associated with Seattle's World's Fair legacy.