Which U.S. state is known for the Space Needle?

The Space Needle is an iconic landmark located in Seattle, Washington. It was built for the 1962 World's Fair and has since become a symbol of the city and a popular tourist attraction, offering panoramic views of the Seattle skyline, the Puget Sound, and surrounding mountains. Its distinctive futuristic design reflects the architectural style of the time and is recognized worldwide.

The significance of the Space Needle firmly places Washington as the correct answer because it embodies the culture and history of Seattle. Other states listed, like Oregon, California, and Utah, do not have a structure comparable to the Space Needle in terms of its historical context or cultural symbolism related to space exploration and innovation.