Museum of Glass
Museum of History & Industry
Nordic Heritage Museum
Northwest Railway Museum  Is the largest railway museum in Washington State. The museum operates the Snoqualmie Valley Railroad, an interpretive railway program offering train excursions through the Cascade Foothills. The museum has a large collection of artifacts and equipment.
Odyssey Maritime Discovery Center
The Olympic Music Festival
Pacific Northwest Ballet
Pacific Rim Bonsai Collection
Pacific Science Center
The Paramount Theatre
Point Defiance Zoo & Aquarium
Seattle Aquarium
Seattle Opera
Seattle Repertory Theatre
Seattle Symphony at Beneroya Hall
Teatro ZinZanni
Woodland Park Zoo
Ye Olde Curiosity Shop

Tell them you saw their web site on allvacation.info.