The Space Needle is a tower in Seattle, Washington, and is a major landmark of the Pacific Northwest region of the United States and a symbol of Seattle. Located at the Seattle Center, it was built for the 1962 World's Fair, during which time nearly 20,000 people a day used the elevators, with over 2.3 million visitors in all for the World Fair. The Space Needle is 605 feet (184 m) high at its highest point and 138 feet (42 m) wide at its widest point and weighs 9,550 tons. It is built to withstand winds of up to 200 mph (320 km/h) and earthquakes up to 9.5 magnitude. The tower has 25 lightning rods on its roof to prevent lightning damage.
The Space Needle features an observation deck at 520 feet (160 m), and a gift shop with the rotating SkyCity restaurant at 500 feet (152 m). The Space Needle was designated a historic landmark on April 19, 1999 by the City's Landmarks Preservation Board.
The architecture of the Space Needle is the result of a compromise between designs. The two leading ideas for the World Fair involved businessman Edward Carlson's sketch of a giant balloon tethered to the ground (see the gently sloping base) and architect John Graham's concept of a flying saucer (see the halo that houses the restaurant and observation deck).
Architect : John Graham