Pasco Aviation Museum
Museum on Enter thru Bergstrom Aircraft Inc, 4102 N in Pasco.
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Museum at Keewaydin
Museum on W Keewaydin Dr in Kennewick.
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REACH Museum
Interpretive museum telling the stories of the Mid-Columbia: the Ice Age floods, tribal history, agriculture, the Hanford Site and the Hanford Reach. Hands-on exhibits for kids.
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Manhattan Project National Historical Park – Hanford
Most historic Hanford properties are behind the fence on Department of Energy land and are reached only by free, reserved DOE tours. As of fall 2026, B Reactor is closed to public access during roof replacement; the Pre-WWII Historic Facilities tour stops outside the construction zone so visitors can see it from a distance.
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Franklin County Historical Museum
County history museum housed in Pasco’s 1911 Carnegie library building.
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Prosser Historical Museum
Two centuries of Prosser and lower Yakima Valley history.
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Sacajawea Interpretive Center
Exhibits on Sacagawea, the Lewis and Clark expedition and the tribes of the confluence, inside Sacajawea Historical State Park.