Mount Rainier National Park http://www.nps.gov/mora/index.htm
Seattle Center with Space Needle and Chihuly Garden http://www.chihulygardenandglass.com/
Boeing Factory tour http://www.boeing.com/company/tours/
Museum of Flight https://www.museumofflight.org/
Pike Market http://pikeplacemarket.org
Butchard Gardens (in Canada) http://www.butchartgardens.com/