Pavilion of Electric Power at <a href="https://en.wikipedia.org/wiki/Century_21_Exposition" class="extiw" title="w:Century 21 Exposition">Century 21 Exposition</a> (1962 World's Fair, Seattle, Washington, USA). The lower portion of the <a href="https://en.wikipedia.org/wiki/Space_Needle" class="extiw" title="w:Space Needle">Space Needle</a> can be seen in the background.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/24256351@N04">Seattle Municipal Archives</a> from Seattle, WA
CC BY 2.0
<bdi><a href="https://en.wikipedia.org/wiki/en:Seattle_Municipal_Archives" class="extiw" title="w:en:Seattle Municipal Archives"><span title="municipal archives of the city of Seattle">Seattle Municipal Archives</span></a>
</bdi>