Triple threat: San Marino, CA

For fans of art, letters, and botany, The Huntington Library, Art Collections, and Botanical Gardens has it all. Of the 207-acre property, 120 landscaped acres are open to visitors with their more than 14,000 different varieties of plants in more than a dozen principal garden areas, including the Children's Garden, Jungle Garden, and Desert Garden. Head indoors to the library to browse rare historical and literary books and manuscripts, and then check out American and European painting in the art wing.

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