Log House Museum, “The Birthplace of Seattle”
Celebrates the early history of Alki and West Seattle. From I-5 south of I-90, take the West Seattle Freeway and turn right off the Harbor Avenue S.W. exit to circle around Alki Point, then turn left on 61st Avenue S.W. loghousemuseum.org
 
Klondike Gold Rush Museum
Between I-90 and the Seattle waterfront in the historic Pioneer Square district, with photos and memorabilia from Seattle’s turn-of-the-century boom days.
319 2nd Ave. S., Seattle.  nps.gov/klse

Winters House Visitors Center
In the 340 acre Mercer Slough Nature Park, with public tours, interpretive displays, historic information, and access to a 1 mile Heritage Trail. From I-90, take Bellevue Way exit # 9 north. The Winters House is on right side of Bellevue Way just after the Blueberry Farm, at 2102 Bellevue Way SE.  425-452-2752. cityofbellevue.net/winters_house.htm

Issaquah History Museums
The Gilman Town Hall Museum and the Issaquah Depot Museum discover, preserve and share the history of Issaquah. From I-90 take exit 17, head south on Front Street for 1 mile. For the Depot, turn left on Sunset Way, left again on First Avenue. For Town Hall, turn left on Andrews Street. 425.392.3500. issaquahhistory.org

Northwest Railway Museum
Historic train cars in downtown Snoqualmie, exhibits in the classic Victorian railroad station and train rides show the history of railroads and logging in the Snoqualmie Valley. From I-90 westbound take exit 31, or from I-90 eastbound take exit 27. The depot is at the intersection of Railroad Avenue and King Street. trainmuseum.org

Meadowbrook Farm
This historic 450-acre farm and Native American gathering place at the foot of Mt. Si is now public open space, farmland, wildlife habitat and interpretive facilities in the heart of the Snoqualmie Valley. From I-90, take exit 31, turn north, follow the curve onto Highway 202, and turn right onto Boalch Avenue. meadowbrookfarmpreserve.org

Snoqualmie Valley Historical Museum
Located in a small city park, this museum tells the story of Native American civilization and European explorers and settlers. From I-90 take exit 31 and head north on North Bend Way to the museum, on the right just before you enter downtown, 425.888.3200.  snoqualmievalleymuseum.org

Roslyn
A 19th century coal mining town, Roslyn was the setting for the TV series “Northern Exposure.” The historic graveyard is divided into ethnic zones reflecting the many nations that sent miners here. The Roslyn Museum houses photos, mining tools and historical information. Take I-90 exit 80 or 84 and head northwest on Highway 903. cleelumroslyn.org

South Cle Elum Depot
Cafe and interpretive trail at the former Milwaukee Road railway depot and substation. From I-90, take exit 84 to South Cle Elum. milwelectric.org

Indian John Hill
Rest area with interpretive signs and views of the granite Stuart Range, picnic tables and interpretive signs. Off I-90 just east of Cle Elum.

Thorp
Built in 1883 and designated a National Historic Landmark in 1977, the Thorp Grist Mill is the oldest industrial artifact in Kittitas County. See a remarkable collection of handmade wooden mill machinery in this small museum, open to the public in the summer. From I-90 take exit 101, turn north and go 3 miles to Thorp to reach the mill at the far edge of town, 509.964.9640.
thorp.org