For a break from all the history of Sonoma’s main attractions, take a walk in the ultra-modern gardens of Cornerstone Place (23570 Hwy. 121, Sonoma, 707/933-3010, www.cornerstonegardens.com , 9 a.m.–5 p.m.). This unique installation combines an art gallery with the work of the foremost landscape and garden designers in the world.
Stroll these unusual gardens, which range from traditional plantings to post-modern multi-media installations. Finish up your excursion with a crawl through the boutiques, upscale foodie shops, and wine bars that have recently sprung up around the gardens.
Daily wine tastings and various snacks and non-alcoholic drinks provide welcome refreshment, especially on hot Sonoma  summer afternoons.