At 605 ft (184 m) high, the Space Needle was once the tallest structure west of the Mississippi River in the United States. The tower is 138 ft (42 m) wide, weighs 9,550 short tons (8,660 metric tons), and is built to withstand winds of up to 200 mph (320 km/h) and earthquakes of up to 9.0 magnitude, as strong as the 1700 Cascadia earthquake.
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