page_title: Century 21 Exposition
section_title: Buildings and grounds
hierarchical_section_title: Century 21 Exposition / Buildings and grounds
caption_attribution_description: Item 73116, World's Fair Slides (Record Series 9955-01), Seattle Municipal Archives. English: Aerial of Seattle World's Fair (Century 21 Exposition), 1962.
context_page_description: The Century 21 Exposition was a world's fair held April 21, 1962, to October 21, 1962, in Seattle, Washington.
  Nearly 10 million people attended the fair.
  As planned, the exposition left behind a fairground and numerous public buildings and public works; some credit it with revitalizing Seattle's economic and cultural life. The fair saw the construction of the Space Needle and Alweg monorail, as well as several sports venues and performing arts buildings, most of which have since been replaced or heavily remodeled. Unlike some other world's fairs of its era, Century 21 made a profit.
  The site, slightly expanded since the fair, is now called Seattle Center; the United States Science Pavilion is now the Pacific Science Center. Another notable Seattle Center building, the Museum of Pop Culture, was built nearly 40 years later and designed to fit in with the fairground atmosphere.
context_section_description: Once the fair idea was conceived, several sites were considered. Among the sites considered within Seattle were Duwamish Head in West Seattle; Fort Lawton (now Discovery Park) in the Magnolia neighborhood; and First Hill—even closer to Downtown than the site finally selected, but far more densely developed. Two sites south of the city proper were considered—Midway, near Des Moines, and the Army Depot in Auburn—as was a site east of the city on the south shore of Lake Sammamish.
  The site finally selected for the Century 21 Exposition had originally been contemplated for a civic center. The idea of using it for the world's fair came later and brought in federal money for the United States Science Pavilion (now Pacific Science Center) and state money for the Washington State Coliseum (later Seattle Center Coliseum, rebuilt 1993 as KeyArena, and again in 2021 as Climate Pledge Arena). Some of the land had been donated to the city by James Osborne in 1881 and by David and Louisa Denny in 1889. Two lots at Third Avenue N. and John Street were purchased from St. Demetrios Greek Orthodox Church, who had been planning to build a new church building there; the church used the proceeds to purchase land in the Montlake neighborhood. The Warren Avenue School, a public elementary school with several programs for physically handicapped students, was torn down, its programs dispersed, and provided most of the site of the Coliseum (now Climate Pledge Arena). Near the school, some of the city's oldest houses, apartments, and commercial buildings were torn down; they had been run down to the point of being known as the "Warren Avenue slum". The old Fire Station No. 4 was also sacrificed.
  As early as the 1909 Bogue plan, this part of Lower Queen Anne had been considered for a civic center. The Civic Auditorium (later the Opera House, now McCaw Hall), the ice arena (later Mercer Arena), and the Civic Field (rebuilt in 1946 as the High School Memorial Stadium), all built in 1927 had been placed there based on that plan, as was an armory (the Food Circus during the fair, later Center House).
  The fair planners also sought two other properties near the southwest corner of the grounds. They failed completely to make any inroads with the Seattle Archdiocese of the Roman Catholic Church, who had recently built Sacred Heart Church there; they did a bit better with the Freemasons' Nile Temple, which they were able to use for the duration of the fair and which then returned to its previous use. It served as the site of the Century 21 Club. This membership organization, formed especially for the fair, charged $250 for membership and offered lounge, dining room, and other club facilities, as well as a gate pass for the duration of the fair. The city ended up leasing the property after the fair and in 1977 bought it from the Masons. The building was eventually incorporated into a theater complex including the Seattle Children's Theatre.
  Paul Thiry was the fair's chief architect; he also designed the Coliseum building. Among the other architects of the fair, Seattle-born Minoru Yamasaki received one of his first major commissions to build the United States Science Pavilion. Yamasaki would later design New York's World Trade Center. Victor Steinbrueck and John Graham, Jr. designed the Space Needle. Hideki Shimizu and Kazuyuki Matsushita designed the original International Fountain. Despite the plan to build a permanent civic center, more than half the structures built for the fair were torn down more or less immediately after it ended. One attempt to conserve installations from Century 21 was the creation of a replica "welcoming pole," a number of which originally stood tall over the southern entrance to the fair. This replica stood outside the Washington State Capital Museum until 1990, when it was taken down.
  The grounds of the fair were divided into:
  World of Science
  World of Century 21 (also known as World of Tomorrow)
  World of Commerce and Industry
  World of Art
  World of Entertainment
  Show Street
  Gayway
  Boulevards of the World
  Exhibit Fair
  Food and Fav
caption: Aerial view of the fairgrounds in 1962
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