To Seattle, I have not been to the Space Needle, just like to Paris, I have not seen the Eiffel Tower, it is worth mentioning that the top of the Space Needle has been transformed into a two-layered upper and lower floors that tourists can sightseeing, and the upper floor can walk out of the outdoor observation layer surrounded by transparent glass. Because the 360-degree transparent glass will not block the view and can play a protective role. If you are on the lower floor, there will be transparent aisles. Be careful about the height. The feeling of hanging on the space needle tower can't help but make your legs sour. You will find that this layer will still rotate!