2 Best Sights in Napa and Sonoma, California

Renowned horticulturist Luther Burbank lived and worked on these grounds and made significant advances using modern selection and hybridization techniques. The 1.6-acre garden and greenhouse showcase the results of some of Burbank's experiments to develop spineless cacti and such flowers as the Shasta daisy. Use your cell phone on a free self-guided garden tour, or from April through October take a docent-led tour (required to see the house).

Rare East Asian trees and plants thrive in this 25-acre woodland garden a little over a mile north of downtown Glen Ellen. There's also a heritage rose garden near the entrance. The colors throughout are most vibrant in spring, but year-round a visit here makes for a pleasant break from wine touring.