The SPace Needle is located at the base of Queen Anne in Seattle Center, next to Key Arena. The charge is around $11 per person to ride to the top. There is a nice gift shop in the bottom where you can buy many Space Needle and SEattle related souvenirs.
The view from the top is amazing. Make sure to bring your camera, and if you can, arrange to go during a sunny day (which means that going between September-July is kind of out of the question). When there is cloud cover (again, September-July), you really don't see anything at all. During the summer when the clouds are gone you can see forever. Very nice place for tourists and locals alike to see SEattle and get a nice visual layout of the city and surrounding area.
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