The Olympic Sculpture Park (2901 Western Avenue) is a nine-acre waterfront offshoot of the Seattle Art Museum, with free admission.

CNN: Seattle: What to see

With an eye toward being a good neighbor, the Gateses have also earmarked funds for causes like local Outward Bound programs and the Seattle Art Museum.

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Only slightly less imposing is the pink granite structure that is Seattle Art Museum (1300 First Avenue) and the 48-foot "Hammering Man" that guards its entrance.

CNN: Seattle: What to see

The museum is known for its collections of Native American and African art, while Asian art is showcased at the Seattle Museum of Asian Ar t (1400 East Prospect Street, Volunteer Park) in Capitol Hill.

CNN: Seattle: What to see