Space Needle's Secrets

Seattle's iconic Space Needle, an example of Googie architecture that flourished in the post-World War II era, has a 30-foot deep foundation, which means the center of gravity of the 605-foot-tall structure is just five feet off the ground. Interestingly, the floor of the SkyCity restaurant atop the Space Needle makes one rotation every 47 minutes, weighs roughly 125 tons, and is powered by a single 1.5-horsepower motor.