I haven't really checked out the art galleries yet, but the gardens here are wonderful. You can wander for hours on the little paths or stroll through their famous Rose Garden. There are benches scattered throughout the grounds or you can rest on the wide expanses of lawn and just sit in the sun. There are also periodic plant sales; the last time I visited, there was an orchid sale in the parking lot.
Pros: lots of parking
Cons: crowded on weekends
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