Space needle is a tower in Seattle, Washinton constructed in 1961. The main function of this building is observation. Different from building that designed by a completed idea. The architecture of the Space Needle is the result of a compromise between the Edward E. Carlson and John Graham. Jr. 

The first impression of Space Needle to me is cool. I thought this building is a future technology laboratory or a communication station between human and alien when I first see this building in a newspaper. However, it disappointed me when I know there is only a restaurant on the top of this building.