High Quality Content by WIKIPEDIA articles! Safeco Plaza, previously 1001 Fourth Avenue Plaza, and the Seattle-First National Bank Building, is a 50-floor building in downtown Seattle, Washington. Locals nicknamed it "The Box the Space Needle Came In". When this 192 m (630 ft) office building was built in 1968–1969, it dwarfed Smith Tower, which had reigned as downtown`s tallest building since 1914, and edged out the Space Needle (1962) in Seattle Center by 25 feet (7.6 m). It was also the first Class A office building in Seattle.