KK Covers

#1196 - Seattle World's Fair stamp FDC, postmarks Apr 25, 1962 (Seattle, WA).

The Century 21 Exposition (also known as the Seattle World's Fair) was a World's Fair held April 21, 1962, to October 21, 1962 in Seattle, Washington, USA. Nearly ten million people attended the fair. Unlike some other World's Fairs of its era, Century 21 ran a profit.

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 (see History of Seattle since 1940). 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). 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 Experience Music Project, was deliberately designed to fit in with the fairground atmosphere, but was built nearly 40 years later.