Worthwhile but limited by Rhoda B. at InsiderPages
This is a nice little museum in the Park at Bothell Landing. It is a historic two storey home, relocated in the park in the late 70s. A log cabin and a one room schoolhouse are close by, also brought to this site for their historical interest.
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The rooms have been furnished with historic accuracy, and there are numerous photographs of old time Bothell and its citizens. Understandably but unfortunately, due to limitations on money and volunteer staffing, the museum is only open on Sundays 1-4 pm, and that only from April through mid-December. Happily, though, there are tours by special interest groups and school children at other times.
Admission is free.
PROS: Historical objects and photos are fascinating; free admission
CONS: Very limited open hours