The Space Needle, Seattle

You can easily spend the better part of a day at the Seattle Centre, accessed via the Westlake Center Monorail, it holds several of Seattle's attractions and is the gateway to a few more. Built for the 1962 World's Fair, the Space Needle is a marvel of the city skyline. Legend has it that the famous shape was first conceived by architect John Graham on a napkin. To get the full effect of the view, it's a great idea to get the City Pass and use the day/night ticket - although this does have to be used on the same day.