Off the top of my head, and in no order
- Space Needle (Seattle)
- Experience Music Project/Science Fiction Museum (right next to Space Needle)
- Pike Place Market (ride the Monorail to downtown from Space Needle)
- Take a tour of Seattle by land and sea on a Duck
- Get some coffee at the original Starbucks store (in Pike Place Market)
- Go to the Seattle waterfront and take a harbor tour
- Museum of Flight at Boeing Field in Seattle
- Take a Boeing Factory Tour in Everett and go in the "World's Largest Building" (30 miles north of Seattle)
- Museum of Glass in Tacoma (an hour or so south of Seattle)
- Wine tour in Woodinville (7 miles north of Redmond) including Redhook Beer, Chateau Ste Michelle Winery, some Micro Whiskey, and some really fine food (reservations required).
- Take a float plane tour on Kenmore Air in Seattle.
There are lots of outdoors adventures in the mountains and on the water in this area. Snow has been falling pretty hard in the mountains, and some of the ski areas my be opening as early as this weekend. You can rent skis and take lessons at all of the areas. The nearest to Redmond is The Summit at Snoqualimie, about an hour drive from Redmond. Though this is the lowest of all of the ski areas and will be the last to open.