Pacific Science Center, founded in 1962 in Seattle, grew from the former United States Science Pavilion of the Century 21 Exposition into one of the city’s leading cultural and educational institutions. Its Minoru Yamasaki-designed campus at Seattle Center, known for its arches and fountains, preserves visible links to the World’s Fair while housing theaters, exhibits, a planetarium, a butterfly house, and long-running science displays. Beyond its main museum, it extends science education through outreach, camps, teacher support, and environmental programs in Bellevue. Over time, major exhibitions, interactive programming, and expanded facilities helped make it a nationally recognized science museum.