lesser-known outdoor attractions, serene vineyards, and even some of the most beautiful hiking trails in Northern California.

Whether you're hiking the trails in one of the state's scenic national parks, sampling some bubbly in the northern ... visit in California. Have a favorite? Vote below to help influence next year ...

And to help quantify the best of the best, BookRetreats, a leader in retreat bookings, used data sets to curate a list of the best U.S. tourist attractions ... in San Diego, California No ...